I took on the $21 Challenge, and won! However, my husband was a rather grumpy participant; he loved the savings but not the lifestyle during Challenge week. As he goes away regularly, I decided that every night he's not home for dinner would become a $21 Challenge night for the kids and I - all meals must be made from ingredients I already have at home, and I can only use ingredients that have not been allocated for other meals. This saves money and gives me a night off cooking, as my Challenge meals are usually simple affairs, sometimes as easy as pancakes or toasted sandwiches.

The true value of the $21 Challenge became apparent when a friend was recently diagnosed with a severe form of leukaemia. She is a married mother of four boys and is embarking on a long therapeutic journey that will hopefully lead to a full recovery. As a way of helping her family, the parents at our school have banded together to make all their meals for the next three to six months. As they are a large family, with an above average food requirement, I was unsure how I could afford to help feed them each week. Thankfully, my husband was away the week my friend was diagnosed, so the kids and I lived off the $21 Challenge that week and all leftover money was put into making meals to freeze for my friend's family.

We now do the same thing whenever my husband is away – it's a great gift over the Christmas break to know that I can afford to cook and freeze meals for my friend's family, and look after my family at the same time. Thank you.

I use polar fleece squares for face washers as they foam up well and are very soft. Recently, the kids had just hopped out of the bath and I noticed that there was a lot of foam on the glass doors (we have a bath/shower combo) so I gave them a quick wipe and noticed that the window came away clean with no streaks. My mother has a shower screen that we have tried every product known to cleaning on over the past ten years with no great success. She tried this and was absolutely amazed at the result! Clean, clear and streak free.

Please try it - just polar fleece and warm water. You will save a fortune as polar fleece is only about $6.00 per metre (buy good quality as it will work better) and you will not need to use any more toxic chemicals. I also use polar fleece as nappy liners, general cleaning cloths, and dusting and dishwashing cloths. Great for cleaning and polishing stainless steel also!

Here's how we saved $3160 on our food and grocery shopping in one year!

With two kids, it's difficult to find time to shop every week, so I now plan a month's meals in advance and do one big shop each month for basics and weekly shops for fruit, vegetables and meat.

We used to spend $150 a week ($7800 a year) shopping, then find we were throwing away fruit and vegetables because they had gone bad, and that we never had enough ingredients in the house for a full meal. We now spend a total of $170 a month grocery shopping, and $50 a week on fruit, vegetables and meat, if that. This equates to a yearly total of $4640 - a saving of at least $3160!

Planning the month's menu takes a maximum of 20 minutes, and each week we have two fish meals, two meat meals and three vegetarian. Recipes come from 'The Destitute Gourmet Cookbook', the Safeway magazine, magazines from the library and from friends. Each week has a mix of easy/quick recipes and more involved ones so that if I have a busy day, I can make something quick. I also plan the 'snacks' such as oat cake, date loaf and banana muffins.

I have a spreadsheet on the computer which helps me to plan how much pasta, rice, tinned tomatoes, and so on I need (four kilograms of rice, five packets of pasta, and so on).

After planning the menu, I write the shopping list and then hit NQR, Safeway and Coles while my husband looks after the kids. It takes only an hour if you're organised with a list and go at a quiet time of day! I prepare separate lists for the weekly fruit, vegetable and meat needs.

We are all now eating in a healthy way and always have cakes and biscuits on hand for guests - and we always use what we have before it goes off.

Other advantages are that other people can consult the menu to see what to cook if I'm not around. Because I'm only doing one big shop, I'm not buying as many impulse items - especially since the husband and kids stay at home! We're also finding that we have enough leftovers from one meal to last another, even after using some for lunches.
And we don't live on baked beans! Tonight we feasted on vegetarian sushi with pickled ginger and Asian dips. Last night was a Moroccan chicken casserole with couscous. Tomorrow night may be a tuna curry, home-made vegetable pizza or grilled balsamic lamb salad!

Doing this, we're saving more than $3000 a year for the family - and don't have the stress of shopping each week with two active children!

Why buy lunch? With recipes as good as this, there's no need! I make this egg slice every few days to take to work, and I thought you might like to try it too.

Ingredients:

2 cups vegetables – just about anything will do. Leftover roast vegetables, steamed vegies, wilted salad... even raw stuff like grated carrot or chopped up tomato.

1/2 cup leftover meat, for example, bacon, fish or chicken

4 eggs, beaten

Grated cheese

Method:

Spread the vegetables and meat over the bottom of a greased square baking dish. Pour over the beaten egg, top with grated cheese and bake at 170C for about 30 minutes.

I take a quarter of this slice and some salad to work every day – it's yummy hot or cold. Thanks to the wide variety of vegetables you can use, no two slices are the same. It costs less than a dollar to make and the vegetables and protein keep me going for hours.

I have saved heaps by no longer buying expensive cleaning products. To clean my toilet, bath or shower, I quickly wet the area and let most of the water drain away. I then sprinkle the whole area with bicarbonate soda, using a small shaker (you can get them at Kmart for a few dollars). I then spray it with cheap white vinegar in a spray bottle. There is a slight chemical reaction that dissolves all the mould and dirt. Leave it for a few minutes to work. You still have to scrub a little and you may need to re-do any heavily soiled areas. It also works for benchtops and sinks, it's a cheap alternative to chemicals and good for the environment too.

We all know how convenient it is to grab a packet of cake mix off the supermarket shelf, but you can save a lot of money by making your own. This recipe is really easy to make and you can store it in the fridge for up to three months or for longer in the freezer.

Ingredients:

250g self raising flour
185g caster sugar
2tbsp milk powder, skimmed or full cream
125g butter

Method:

Sift or process all dry ingredients until combined, and then rub in or process the butter.

To make the cake add:

2 eggs
1tsp vanilla essence
1/2 cup water

When these ingredients have been added to the cake mix, beat the whole lot until combined. Bake at 150C - 180C for 30 minutes if making one cake, or 20 minutes for smaller cakes. For variety, add coffee, cocoa or anything else you like. This is as good as shop bought cake mixes and half the price!

We had the chance to travel overseas several years ago but had to save $1000 to make it happen. On one income with two small children it seemed impossible. Then I had the brainwave - I didn't have to save $1000, I had to save $1.00 a thousand times! This was so much easier - a generic brand product at the grocery store, a chocolate bar at the petrol station and so on, soon added up and the savings contributed to a great family holiday.

I have a family of five children and I like them to eat healthy food that is inexpensive. I often try healthy recipes, and have found one for muesli bars that the kids (and Dad) and their school friends love. It's quick, easy, healthy (you know exactly what's in it) and economical.

Muesli bars

1 1/2 cups toasted muesli

(we use the apricot and almond variety; it doesn't have to be an expensive type)

2 1/2 cups of Rice Bubbles

1/2 cup coconut

1/4 cup crushed nuts

125 g butter (salt-reduced butter is good)

1/2 cup honey

1/2 cup peanut butter

1/2 cup raw sugar

1/2 cup choc chips

(I also add a tablespoon of linseed for extra fibre and omega-3 vitamins; they don't even taste this healthy addition.)

Mix the dry muesli, rice bubbles, coconut and nuts in a bowl. Place butter, honey, peanut butter and sugar into a small pan. Stir over low heat until melted. Allow to come to the boil then reduce the heat to simmer without stirring for five minutes. Pour this into the dry ingredients and stir well. Allow to cool to room temperature (about 20 minutes). Add choc chips and mix again. Line a scone tray with aluminium foil and press the mix into the tray until it is flat (you can use a glass to do this). Refrigerate until firm. Slice and serve. Store in the fridge for up to three weeks (if it lasts that long).

These save a fortune. This mix makes just over a kilo of muesli bars (I use a tray that is approx 28 cm x 36 cm and this will slice up to 30 standard size muesli bars). It costs around $3.50 to make (which can be less if you shop around and use generic or Aldi brands of butter, Rice Bubbles and muesli). Home Brand muesli bars are about $1.69 for six ($0.28c each) compared to around $0.11c each for these home-made ones. Uncle Toby's muesli bars cost between $0.40c and $0.49c per muesli bar.

During my uni student years I developed a menu-planning and grocery shopping system that allowed me the freedom to eat well, generously fuel my bicycle-based lifestyle, entertain guests regularly and experiment with new recipes, all within my strict food budget of just $15 a week!

It works like this.

1. Decide how much you will spend on your weekly groceries. In recent years I have had to increase my spending to about $21 a week due to rising food costs and CPI, but the system still works really well when I use it and is a great way to separate needs from wants.

2. Choose the staples and basics that are to be made every week as needed. These could include soy milk, tofu, sourdough bread, yoghurt, sprouts, hummus, fresh lemon cordial, Anzac bickies, gomasio or whatever else you require.

3. Give the ingredients needed to make these staples first priority when making the weekly shopping list. If you have a local food co-op you can buy mostly organic ingredients with minimal packaging in exactly the amounts you need.

4. Check what else is in the fridge, cupboard, garden or neighbours' garden and pore over your large collection of second-hand recipe books to see what can be created with these other ingredients. Recipes which require two or less extra (and inexpensive) ingredients are preferred and a list of these and their corresponding cookbooks/page numbers is made and stuck on the fridge. There will usually be a selection of mains, side dishes, desserts, treats and beverages on the list.

5. Give the extra ingredients needed for the chosen recipes next priority on the shopping list. Over time you will intuitively know when your shopping list is 'full'.

6. Once out shopping, specials of the day such as a big bag of discounted apples or cheap cooking tomatoes take third priority. If not consumed within the week, these can form the basis of recipes chosen for the following week.

7. Last priority (and usually only considered after the register shows you are still under budget) are those inevitable temptations that one wants rather than needs. It often helps me to take my recipe list with me and remind myself that I can make a delicious self-saucing carob pudding at home for a fraction of the cost of the tiny chocolate bar I am now contemplating. All of a sudden the money seems much better spent on a kilo of brown rice!

8. Back at home, simply cross the recipes off the list as they are made. There will always be plenty of food for dinner parties or last-minute guests, and the sometimes tiresome decision of 'what to cook?' becomes easy.

Using this system I have never run out of food or felt like there was 'nothing to eat'. In contrast, I have stayed at many houses where, despite having pantries and fridges which are bursting with food, the occupants have driven to the supermarket and easily spent $30 or $40 just to cook up dinner for the night.

Seems unbelievable? Try scratching every processed food item off your own shopping list and see how many more kilos of real food you can come home with for the same amount of money. Don't forget too, to keep an eye out for trees in public areas which are loaded with fruit or nuts. I have used the $15 a week food budget for stretches of up to a year at a time, which means I certainly wasn't relying on stockpiles of food from more extravagant days tiding me over. Necessity breeds creativity, and I am so happy to have been forced early on to examine and separate my wants from my needs in this regard. Even when times are tough, I know I can eat well!

Buying Christmas presents for adult friends and family can be both expensive and stressful, especially when trying to match the perfect present to the person.

So one year I decided to make up small deluxe hampers which contained a mini bottle of sparkling wine, two plastic champagne glasses, chocolates, mixed nuts and home-made shortbread. I purchased the gold wire baskets from the Reject Shop for $2.00 each and the glasses (also from the Reject Shop) were $2.00 each. The mini sparkling wines were purchased from Dan Murphy's and worked out at around $3.50 each when purchased in lots of six. The chocolates were a good quality brand, and individually wrapped, so I bought a large tray and then divided them up (which was cost effective as I only needed around three in each basket). I then purchased a large bag of mixed nuts, which I repackaged into small Cellophane sachets, and I made the shortbread, which worked out to only a few cents each.

The overall cost of each hamper was around $10, including the cost of gold tissue paper (also purchased from the Reject Shop) to line the baskets and ribbon for decorating. I suggest sticking to one colour theme for each hamper, for example, gold covered chocolates, ribbon and baskets or silver baskets and accessories.

It's a good idea to look in places like the Reject Shop or $2 shops as soon as you see Christmas decorations appearing on the shelves. That way you get the best selection and can start putting them together early (except for the shortbread or any home-made foods you choose to include in the hampers). This way you'll have plenty of time closer to Christmas to concentrate on the children's presents!

I saved heaps of money, made something original and had heaps of fun doing it!