I have saved $50 in virtual coins in just a few weeks, since I started using my online money jar! I like the idea of emptying out my purse at the end of every day and placing loose change into a money jar to help me to save. The trouble is, I don't really carry any cash on me any more! Whenever I need to buy something I transfer the exact amount onto my debit card then go out and buy it. This ensures I never have excess cash to spend but it makes it difficult to save loose change. So I came up with this idea. Every time I log on to Internet banking I check all my savings accounts and transfer all the cents into a separate savings account called my 'e-Money Jar'. It's working perfectly and is amazing how quickly those few cents soon mount up!

We no longer spend up to $5.00 on a birthday card. Now we spend $0.15c at the very most!

All we do is take a photo of the family holding up a sign that reads 'Happy Birthday'. I have had a pile of them printed off and we simply write a personalised message on the back of each photo.

This great idea can be used on any occasion, including Christmas. So say cheese and save bread!

When I separated from my husband and was left with three children, I had no income apart from the pension. Food was getting very scarce, so I had to become creative. Every second week I drove to Flemington fruit and vegetable markets in Sydney (about closing time when most food is the cheapest), bought food by the boxes, and spent the whole day processing it. I made vegetable lasagnes, which I would freeze, all sorts of sauces, vegetable selections for stir frying and steaming, mango ice blocks (pureed mango only) and so on. We would use the most perishable fruit and vegetables the first week and the others later. Eventually we started to have an overabundance of food.

Then I told a few friends of my system, and very soon I was running a little co-op. I started to go to the markets every week and buy a greater variety of food. I got my fruit and vegies free and could also split up my petrol bill for the week amongst participants of the co-op. They got their food much cheaper than in the shop, and I got my food and petrol free.

Apart from that we had the freshest food, with fresh fruit or vegetable juices every day. Out the window went fizzy drinks and any convenience foods. It is now about 14 years since we started to eat like this, and we don't even have a family doctor, because we hardly ever get sick. How much we saved on medicines I cannot even begin to calculate.

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 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.

I am no longer wasting leftover avocado, thanks to this simple storage tip! I have always loved avocado but could never use a whole one in one go. I would use about a quarter for my lunch but by the time I went to use the rest it would have gone brown and didn't look very appetising! Avocados can be quite pricy so the expense of wasting so much was very annoying. Then my new partner, who is chef told me how to stop the browning! I didn't realise but the longevity of avocado is due to light. He advised me to wrap the avocado in aluminium foil and then wrap it in cling wrap and put it in the fridge. To my surprise it really works! Now I get to enjoy ALL my avocado and save heaps too!

Making your own pizzas is a brilliant way to save money on buying them - but I bet you haven't tried this! You can save even more money on takeaway pizzas by making your own bases using just TWO ingredients!

This recipe makes two medium sized pizza bases:

2 cups self raising flour

1 x 200g tub natural yoghurt

Simply combine your two ingredients in a bowl and mix together until well combined. Turn out onto a floured board or surface. Knead together as usual, then divide into two equal parts. Roll out your pizza bases, add your chosen toppings and pop into the oven for 15 minutes at 220 degrees.

The results are so delicious. Simply use up whatever you have in the fridge to top your pizza and you've got a super cheap and filling meal. I've converted all my family and friends too! I dare you to give it a go, you'll be amazed!

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 have read lots of hints about ALDI, about how much money you could save by shopping there. I must say I was sceptical.

I have just returned from my second shopping trip at ALDI and I just had to share my excitement about how much I am saving. I used to shop fortnightly at Woolies, spending between $330 and $400 a fortnight. Now I divide my shopping between ALDI and Woolies. Last fortnight I spent $240; this time I have spent $167. The savings are obvious. I would recommend ALDI to anyone.

For many people juggling work, family and study, time is the most important saving they can make. I work four days a week, have a three-year-old and studied part-time for a diploma for a year. I got by with these time-saving tips:

1. Lowering my expectations for the house. I don't need a spotless house, but a tidy and lived-in home.

2. Doing my housework little and often, rather than spending huge amounts of time tidying up. I do things like:

- put my little one's daycare bag together for the next day as soon as we get home in the afternoon.
- cook my lunches (pasta and sauce, muffins and so on) once a week and freeze them.
- put my lunch box together from the freezer in the evening.
- clean the toilet by putting a teaspoon of Napisan in it each night. It soaks overnight and the bowl is clean with the next flush.
- do laundry when enough for a load accumulates so we don't have a sudden clothes drought, then an avalanche of laundry to do and put away.

3. Exercising on a stationary bike in front of the TV in the evenings after my little one is in bed.

4. Programming our DVD recorder once a week (Sundays when we get the new TV guide) so I don't miss my favourite shows.

5. Filling cereal bowls with water if I am rushing and have to leave the breakfast things. This makes them easier to clean later and stops ants.

6. Trying not to double handle things. Rubbish goes straight in the bin, meat is put in meal size portions in plastic bags and frozen as soon as it gets home, magazine subscriptions go straight to magazine rack when they arrive in mail.

7. Leaving rooms better than when I arrived, so the need to tidy doesn't build up. It only takes five minutes to put laundry from the floor to the hamper, make the bed, wipe a bench, replenish the toilet paper.

8. Recruiting my little one to help - she's only three but she can put dirty dishes in the sink, put toys away in her room, dirty clothes in the hamper.

9. Shopping for groceries by myself in the evening so hubby can watch his TV shows in peace and I am not tempted to go to other stores as only the supermarket is open. Also many things are marked down at that time.

10. Trying to do three things for myself that make me feel happy each day, like listen to podcasts while I do the housework.

11. Writing the shopping list progressively through the week so I can pick it up and go when it's time to do groceries.

12. Storing the bedding in storage containers under each bed so it's quick to make the bed, especially when changing my little one's wet sheets in the middle of the night.

13. Shopping for presents at sales during the year (online or in stores) so I don't need to go to crowded stores during the Christmas rush.

14. Not beating myself up if I find lifestyle changes tricky at first - I am afterall human!