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.

We decided to get rid of the $96,000 mortgage on our home within three years. The massive load of interest we would pay to the bank was over the top and we felt that the bank owned us. The entire family bought into the project one hundred percent.

1) We replaced the nice modern cars with older, less costly ones. The net difference and any savings we had and $700 from a garage sale were paid off the mortgage.

2) We agreed to budget as if we were in a life and death war and the war had to be won in three years. I developed an Excel budget spreadsheet and we tweaked the numbers until we had a 'do-able' weekly saving of $220 extra to pay off the mortgage. Clothes purchases would be done exclusively at 'Harrods', our Salvation Army shop, until the war was over.

We decided to run any item not budgeted for over three 'hurdles'.

The first hurdle was 'could it shorten the mortgage war?'

The second hurdle was 'is it a health issue?' and if so what was the least-cost workable solution?

The third hurdle was 'could it wait until the end of the three years?'

3) As time progressed we became pretty smart at reassigning money to reward ourselves for enduring the war. This meant we could have a low cost take away sometimes, or spend on an out of budget item we had set our hearts on.

It took nearly four years to knock off the mortgage. Yes, we won the war a little later than hoped, but we won. If it had taken eight or nine years to win, it would still have been worth it.

The legacy of our war against the mortgage is that we have developed great money saving skills for life. And life is great.

I have finally convinced my three daughters that eating a healthy lunch, including sandwiches with salad, is not only good for them but tastes great too. However, soon after changing their lunch habits, I found that this method was taking a large chunk out of our budget.

Being a working mum, it was easier to stop at the supermarket on the way home and buy pre-packed salad ingredients, but I soon discovered it was adding around $55 to the weekly budget. Plus, buying cold meat to match everyone's tastes added another $40 per week. I decided it was time to cut down. After doing some homework looking for the best prices and quality, I now purchase a bag of carrots, a couple of fresh beetroot, some fresh bean sprouts and cucumbers and a variety of lettuce. I noticed that by purchasing these items late on Sunday afternoon, I can pick them up even cheaper.

I grate my own carrot, beetroot and cucumber, throw in the bean sprouts and store in the fridge in an airtight container. I tear up the lettuce leaves and mix together in a plastic shopping bag and store in the vegetable crisper where they stay fresh and crunchy all week. My salad ingredients now cost less than $10 per week and they last longer. Throw in a small portion of sundried tomatoes for my hubby and I add approx another $1.50 to my total.

Instead of buying cold meat from the supermarket deli, I now purchase a couple of extra chicken breast fillets from my Asian butchery for around $4.00; this is cheaper than ALDI or any other local fresh meat source. I cook and shred the chicken myself while tinned salmon and tuna add extra variety; a $0.69c tin of tuna covers two lunches when added to salad. I purchase mince when it is on special and make a large batch of meatballs, which are frozen and used over a period of weeks as another filling alternative. Another favourite is home cooked corn beef; rather than putting the leftovers in the fridge, I slice it thinly and freeze for another filling choice.

My three girls are now involved in the Sunday afternoon preparations. Whilst my eldest daughter is madly grating the salad items, I tear up the lettuce and my younger daughters have great fun mixing the meatball ingredients and rolling them ready to cook.

Our family of five is still eating yummy healthy lunches but for $70 to $75 a week less than before!
We also have the added bonus of spending time together while we prepare and my daughters are learning new skills too.

I’ve saved countless dollars on expensive gourmet ice cream by getting creative with the cheaper varieties. My kids love it when I buy them what they call 'special' ice creams. These are the expensive varieties that come in exotic flavours and cost between $7.00 and $9.00 for a two-litre tub! Needless to say, they really are a rare treat. However, during the school holidays, my kids and I became gourmet ice cream chefs! Using a four-litre tub of Home Brand vanilla ice cream (that cost $4.59), we scooped it out of the tub and let it sit at room temperature for a few minutes. Then we mixed green food colouring, a couple of drops of peppermint essence and some chocolate chips into the softened ice cream to create our very own Mint Choc Chip flavour! We placed it in an airtight container and popped it back in the freezer to enjoy later. The kids were so excited to have made their own special ice cream that we have since concocted many different ‘gourmet’ flavours just by adding ingredients from the pantry.

We've saved at least $10,000 this year alone, simply by changing our shopping habits!
 
Almost every day, we'd stop at the supermarket on our way home to buy fresh ingredients for dinner – however, we'd also buy a couple of impulse items while there. The daily grocery bill was at least $30; an extra $150 each week on top of our weekly 'big' grocery shop!
 
To reduce the number of trips we made to the supermarket, we analysed our spending habits. We looked at all the grocery items we purchased and separated them into three categories:
 
1. Perishable items that need to be used within a week or so, for example, milk, bread and vegetables.
 
2. Items that had a longer shelf life or could be stored so they last longer, for example, meat that could be frozen, canned items, pasta and rice.
 
3. Items with an extended shelf-life such as toilet paper, detergent, toothbrushes and so on. We then estimated how much of each item we would use in a year.
 
We looked at what we could make or grow ourselves, for example, bread baked in the oven or herbs and vegetables grown in the garden. That left a limited number of items we needed to buy on a weekly basis including milk, fruit and vegetables; at least until the garden was established. These were all items we could buy from the local fresh food market, avoiding a trip to the supermarket, which meant lower prices and fewer impulse buys.
 
The next step was to develop a monthly meal planner - five meals per week with two nights of leftovers or 'invention' cooking using whatever was in the fridge, freezer and cupboard. We put all the recipes in a folder and worked out a monthly shopping list based on these recipes. All non-perishable ingredients are now purchased in this monthly shop. Meat is also purchased monthly from a butcher who offers bulk purchase discounts; the meat is frozen in meal lots ready to be thawed in advance for each meal.
 
We don't tend to cook in bulk, as we enjoy the process of creating fresh meals each day, but we do cook enough to provide the next day's lunch and occasionally cook a couple of casseroles or 'one pot' dishes at the same time and put them in the fridge - the flavour seems to build and is even nicer after a day or two.
 
Our menus also change depending on the season and what produce is available at that time. We're in the process of developing 'summer', 'autumn', 'winter' and 'spring' meal plans with enough recipes to get us through each season.
 
Finally, during each monthly shop we'd buy extended shelf-life items when they were on special until we had a year's worth. It takes up some extra cupboard space but we never run out of essentials and don't have to duck out to the supermarket.
 
Our ultimate goal is to reduce our 'big' shops to once a quarter rather than monthly – this will save us even more time and money by further reducing our exposure to the supermarket.
 
We have saved $150 a week by eliminating daily shops – this adds up to $7800 annually. We've saved even more by shopping at fruit wholesalers and butchers, buying in bulk or taking advantage of specials. By changing our shopping habits, we estimate we've saved at least $10,000 this year!

After reading The $21 Challenge, I thought I would see which other areas of my life I could apply the Challenge to.

First, I opened a separate bank account and now deposit $21 every week before I do anything else with my money. I see this as a type of retirement fund – it will be nice to see the funds in 30 years time!

My next $21 Challenge is to only put $21 worth of petrol in my car each week. I will park my car further away from where I need to go; this will save money and improve my fitness and wellbeing.

When my phone contract ends soon, I am going to challenge myself to spend no more than $21 on pre-paid phone credit each month - now that will be a challenge!

There are so many ways we can implement the $21 Challenge in our lives, thanks to Fiona and Jackie's inspirational book.

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.

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!

Over the past four years I have been fighting my way out of debt. I was left with a large amount of debt when my marriage ended and it seemed I would never find a way out, working nights to support myself and five children and trying to reduce the debt in some way. Then, instead of just reading Simple Savings I began implementing as much of it as I could. Along the way I found that things I previously thought were impossible are just every day now!

Two of my children have now left home and are independent and I have three daughters still living with me. I have found new ways to feed them and where once they would have baulked if I offered them home-made soup after school, they now eat it with relish. A home-made frappe was dessert last night and they were happy and satisfied with that. Fruit jellies, home-made scrolls and calzone along with the batch of cake and muffins or bikkies I make are average snacks and lunches. School lunch today was home-made soup with home-made pizza scrolls. It certainly took a while to change their views from believing that everything had to be store bought and chips were the afternoon snack.

I am now debt free and have savings - something I never thought I would have! Bulk toilet paper, bulk washing powder, skim milk powder, and bulk meat buys at a discount butcher and fruit from the growers has saved me a small fortune.

I recently moved in with my partner to his home with the girls and together we have been able to make more and more changes which once would have not been thought possible but with small steps we have cut out television unless it is a special documentary or one of the two shows per week we deem suitable. The girls now play outside or garden, or read and do homework after school instead of being glued to the 'box' and they haven't asked to play Nintendo for weeks now. Water or weak cordial is the staple drink, with the occasional juice for a treat.

I am now a stay at home mum and as long as I can feed this family, pay for petrol in my car and keep the girls clothed for under $500 per fortnight it will stay that way. I am working hard to make sure these dreams come true.

In reality there is no sacrifice - you just need to know what you want and aim for it every day.