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 am a young woman on a single income, paying off my homeloan. I know the amazing financial savings that are possible when you make extra payments of any size on a large loan. However, because I am on a low annual income I often find it very hard to find any spare cash after all the bills have been paid.

So for birthdays and Christmas, when my friends and family are seeking ideas for gifts to give me, instead of asking for things I don't really need, I ask them to deposit the amount that they would have spent on a gift straight on to my homeloan. I am very close with my friends and family and they understand my financial situation. They are only too happy to help me get ahead and hopefully one day own my own home. It is a gift that keeps giving and one I truly appreciate. I read recently that for every extra $1.00 you are able to pay against the principal of your homeloan you will save $2.00 in return and take years off your loan. The understanding and generosity of my friends will help save me tens of thousands in interest over the years.

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.

Slash your washing powder costs by using a tablespoon of washing powder in your machine instead of a scoop. It works just as well! My sister was learning about budgeting and the speaker mentioned that you could get the same wash results by using one flat tablespoon of washing powder as you could if you used a whole scoop. I decided to test this theory and found that even with a full load of washing this proved to be true. I buy a top brand washing powder that costs around $10 per two kilo box and it contains around 148 tablespoons. I used to go through a two kilo box of powder every four to six weeks when I was using a scoop. Generally I do a load of washing every second day, so using one tablespoon per wash, my box of washing powder should now last me nearly 10 months! Just changing this small habit will save me $90 every 10 months on washing powder!

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.

About a year ago my husband and I were having lunch at a seaside cafe when we noticed the people next to us paying their bill with $5 notes. We found out that they were on a trip around Australia and every time they were given a $5 note, they saved it and used it toward their food bill.

Thinking this was much better than saving $2 coins, I started doing the same. As soon as I receive a $5 note in my change, I pop it into my purse and then put it in a money box when I get home. I keep track of how much is in the box by writing the amount in my diary; when I get to $500 I empty the money box, take it to the bank and put the money into a term deposit for a rainy day.

So far I have saved $1435! I never miss the money and most times I go shopping I come home with at least one $5 note!

I make home-made yoghurt in my EasiYo maker for as little as $0.50c per kilo. You don't need to buy the special sachets, all you need is milk powder and a couple of tablespoons of plain yoghurt. I just use 1 and 1/3 cups of milk powder and two heaped tablespoons of yoghurt (saved from the last batch). Easy, cheap and delicious!

Making potato wedges at home is much cheaper than buying them frozen from the supermarket. I use my OXO Good Grips apple divider (bought from a kitchen shop) to cut up a 5kg bag of spuds. I give the spuds a wash before cutting them up into eight wedges and one cylindrical wedge (the kids all fight over these ones). After popping them in boiling water for a couple of minutes I put them onto paper towel to dry, then into freezer bags. These are quick, economical and you can vary the seasonings in different bags, and have them on hand in the freezer for a quick snack or side dish.

Our story is a great example of how thinking outside the square has enabled us to get ahead, even through the toughest of trials. My husband is on a disability pension receiving $450 per fortnight and I work 20 hours per fortnight earning $397. I have chosen not to apply for Centrelink benefits due to the numerous requirements. Our uninsured home burnt down 10 years ago leaving us homeless (I went into premature labour and spent six weeks in hospital with complications so I had somewhere to stay but my partner lived in our car with our two dogs for this time). We were at the lowest point ever and could not imagine how we were going to survive. We were advised to go bankrupt, which we did but we were now unable to get finance (in hindsight an absolute blessing) to get another house.

We did what most people do and rented a house in the suburbs thinking this was it for us. After three years of this we decided to look elsewhere and found a house in 'woop woop' which was $6000 (pre-real estate boom). Using my first home owner grant we purchased our house and although it was two hours from anywhere good, it was ours outright. This in itself is a handy hint to look outside of the box - our 'woop woop' town had a doctor, a supermarket and a school so it was fine and we lived there happily for another three years. At this point the real estate boom happened and we sold our house for $48,000 and decided to look outside the box once again. We ended up 2000km away from home in a place two hours from Adelaide. We still live here happily and after four years the value of our property has gone from $35,000 to $95,000 (I swear getting our first home owner grant was like winning the lottery).

But we still couldn't save any money so two years ago I cancelled my fortnightly family tax benefit from Centrelink (approx $200 per fortnight). It was hard - very, very hard for the first eight months but then it was tax time and I was very surprised when I received a tax return of more than $7000 with my lump sum FTB part A and B. We paid our bills and bought a second hand car. This year I paid a little extra tax each week ($10) and was pleasantly surprised by an $8000 tax return. With this we bought a block of land 30 minutes down the road (in a bigger town closer to Adelaide). The value of this block is double what we actually paid! Some people say we were lucky but luck had nothing to do with it - we were just prepared to live in very yucky houses in areas no one wants to live. Three months ago a house in our town sold for $21,000 which is around the same as the first home owner grant now and there are still others which would be around the same price. We don't have sewerage or town water but we have a school and a pub so it was certainly a change in lifestyle.

Other people have asked how we are doing so well now and I just laugh! We are earning $845 per fortnight and I have chosen not to work extra hours so I can still be a stay at home mum to our diabetic 10-year-old. We have private health cover, Internet, insurance, power, phone, petrol expenses ($100 fortnight), rates, medical expenses and even private school fees to pay but we still have enough to go around and often support other people with food, even though they are making much more than us. This year we plan on buying a second hand relocatable house for our block with our tax return. It may be a form of forced savings by not getting a fortnightly benefit but when it comes in it is amazing. Thanks to careful budgeting and Simple Savings we easily survive!

I am on a very, very low income, so I budget for every bill and expense. I put away bill money every fortnight and that way I have all my bills covered as they arrive, and we seem to just spend the rest. Last year I decided to pay me as a bill, so every pay day I pay me first, just $50. I now have over $1200 in savings. I can't believe how easy it is; just pay yourself before everyone else. The first couple of pays it was an effort not to touch it, but as soon as I saw it mounting up, I got very excited. I tell myself all the time that money is power. While $1200 is not much to some people, to me it's a fortune. Try it - it empowers you.