As a new member, I have saved $150 in my first week, thanks to the $21 Challenge! I thought I was careful with money until I discovered this site and realised how I could further improve my spending habits. I decided to give the $21 Challenge a go and it is now Thursday and I haven't been to the shops yet!

I have become a problem solver due to the fact that I must use what is in the fridge/freezer and pantry. I nearly buckled when my four year old wanted 'pink milk' and I had run out of Nestle Quick but no problem in the end. I found some rose pink food colouring and with just one drop - presto, pink milk! It does take some preparation because you are cooking from scratch but it is all worth it when your family tells you that the dinner you made tonight was the best, and is there any more?

My other dilemma was to use the three zucchinis in the crisper, so I made them into a slice. It was so easy to make and I had every ingredient on hand without even trying!

Zucchini Slice (serves 4-6)

3 zucchini (grated)
1 onion (grated)
1 potato (grated)
4 slices of ham/bacon (chopped)
1 cup of cheese (grated)
6 tablespoons flour (plain)
3 eggs
salt/pepper

Put all ingredients into a big bowl and mix really well. Pour into a quiche dish and cook in the oven for one hour at 160C. If you are vegetarian, simply leave out the ham. Simple, delicious and super cheap!

I found a way to save almost $50 a year on liquid hand soap with hardly any effort! Just take a bucket filled with four litres of water. Drop a bar of generic soap into it and let it soak for 24 hours. Give it a mix and pour into clean two-litre milk bottles. Just top up pump bottles when needed. For a little added luxury, add half a cup of sorbolene cream and a few drops of glycerine. Works a treat!

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!

Our family is living proof that with a sensible outlook and good, honest hard work anything is possible. Our 'ugly duckling' house has gone from being the worst house to the best house in the street. Unfortunately the cost of renovating and extending it cut into our interior design budget. However we discovered that we could still furnish our dream home beautifully on a reduced budget by settling for second hand items.

For example, our curtains are fully lined and are gorgeous! One window was not a standard size and the quote for its curtains alone was $1500. Instead I found a perfect set at the op shop to fit our huge window for only $40! We have now finished the curtaining for a total cost of $250, saving us $5,000 on the original quotes. We have also bought stunning soft furnishings such as cushions, throws and floor rugs, again from op shops. Furniture we have picked up either second hand, from op shops or passed on from family. We have painted and scrubbed these pieces and now have a very up to date 'beach/country chic' look, all for little cost. The house is now finished and it looks stunning inside and out. We have Edwardian steamer chairs outside on the balcony bought for $2.00 each from the op shop. What a bargain! Our friends and family are amazed.

We now go to op shops first for all of our clothes. Our teenage kids really appreciate their 'brand name' bargains, such as polo shirts for $8 where the normal price would be $100 and many other items. I recently bought my husband a brand new dinner suit on "half price day" for $7.50! When you buy from op shops you pay cash - no credit card debt for us!

Every spare cent goes into paying off our mortgage and the house is almost paid off. We have worked hard doing a lot of building and landscaping work ourselves, as well as the interior, to save money. We live like kings but our outgoings are carefully calculated. We have taught our kids the benefits of hard work, and sensible spending. We are very proud of our lifestyle and the happiness it has brought us.

This idea is for those who live in a home with a garden that is too small to have a compost bin. I use an empty garden pot, cut a square of one of those net bags oranges come in to cover the hole of the pot. Put in a layer of old potting soil (from a pot where the plants have had their day). Each day save your fruit and vegetable scraps in a container. Place in a layer of scraps, then cover with another layer of old soil. Repeat layer by layer until the pot is nearly full, ending with a layer of soil (water as you go).

Then, while the compost is breaking down and baking, plant some seasonal seedlings on top and in no time you will have potted colour and compost underneath, not only feeding your seedlings but ready for the garden when the flowers are spent at the end of the season. I sometimes benefit from crops of vegetables germinated from the seeds in the compost such as tomatoes, cucumbers, capsicum and butternut pumpkin.

This is a multi recycling exercise using unwanted orange bags, unused pots, old soil and fruit and vegetable scraps and, of course, it is a great medium for the latest seedlings. Instead of flowers on top you could plant your favourite herbs while the compost is baking.

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 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.

A novel idea to help my Mum save on new ceiling fans has led to some fantastic and unexpected long-term savings! After being quoted a whopping $160 per unit (pensioner rate) to get ceiling fans installed, we took matters into our own hands and placed an advertisement on local notice boards. It read: 'Experienced licensed electrician required to install three ceiling fans. I would like to trade the costs by doing your washing and ironing for one month.’

Within a few days, Mum had received several enquiries and selected a nice, young single guy who needed a 'mother's touch' to some of his clothes - a lot of stain removal and buttons re-sewn. He installed the fans and dropped and picked the clothes up from her place on a weekly basis. To our surprise we learned he also had connections to plumbers and gardeners and she was soon able to have her bathroom wall retiled in exchange for scrubbing out an oven and re-organising a food pantry for a couple that were having a baby soon.

It didn’t stop there! Before long she was taking up hems, sewing on buttons and doing basic mending in exchange for garden maintenance and mowing lawns. These guys are ripping up old items from homes every day with their trades so these days they even search around to find her the cheapest - or even free - items if she needs them, as well as providing an oven door and dials on her heater for free. They often come across things that others could use but end up in the tip instead.

As a pensioner, Mum has time on her hands and is very experienced in household chores but has a limited income. This trade of skills and services means she can now carry out tasks within her ability and has made some fantastic friends. Her place looks amazing and is she even happy to do babysitting for the families. In turn they really appreciate having a cuddly grandmother figure around. She has a new purpose and a whole new social network too - in fact she looks 10 years younger!

I have just read the recipe for nut and oatmeal bickies on this site. I have used a similar recipe many times and find that six dozen bickies in one baking session are just too many. So, I only bake one dozen, shape the rest of the batter into balls, lay them in a single layer on a plate or roasting dish and place in the freezer. Once frozen, I put them into plastic sealed bags so they are free-flow and I can cook as many or as few as I need at 18 minutes notice - a couple of extra minutes since they are frozen to start with.
 
This is great for unexpected visitors, kid’s afternoon teas or $21 Challenge weeks. My friends think I'm so clever!

Instead of adding up when you do your shopping, why not deduct? This hint explains all.

I no longer use a calculator when I do my grocery shopping. Something to do with always pressing the wrong button and clearing my calculations!

Now, I simply write how much I can spend on my shopping list and when I put something in my shopping cart, I subtract a rounded amount from the total. For example, if I have $100 to spend and I buy milk for $3.89, I subtract $4.00, leaving me a total of $96 to spend on the rest of my groceries.

By making these deductions with every item, you always know how much you have left to spend. Makes it easier to budget and certainly beats using a calculator!