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.

People are constantly amazed when we tell them that we have managed to whittle down our weekly grocery bill to just $100 for our family of four. Our income may not be all that we would wish, but with a little dedication, we have made a huge difference.

For example, in recent months, we have saved $50 per week on our grocery bill, since we have started throwing away our supermarket circulars! For years, I eagerly awaited the arrival each Sunday of the supermarket 'junk' mail. I would plan our eating to a large extent on the weekly specials, and would stock up on a few of them, believing it was saving me money.

However, once I began throwing them away without even a glance, it had an unbelievable effect! Not only did it cut down on the clutter in the house, but amazingly my grocery bill plummeted. I now buy only what I need - as opposed to what the stores want me to buy - and the benefit is showing. By throwing out the junk mail alone, our weekly grocery shop reduced from $150 per week to around $100, saving $2,600 per year!

I still use a menu plan to help me stick to my budget, but now it is food of my choice, rather than being influenced by supermarket advertising. A typical weekly menu might look like:

Monday - Baked chicken and salad (whole chicken $2.50 from local butcher)
Tuesday - Fish and chips (fish $2.00 per pack at ALDI, I use potato gems or
chips about $2.00)
Wednesday - Pasta bake & salad
Thursday - Taco's
Friday - Baked beans (ALDI's are really cheap at around $0.40c for two cans)
Saturday - Chicken legs, pasta and salad (chicken legs $2.00 per kilo)
Sunday - Quiche & salad

I usually have all the meat I need already available, as I buy in bulk, so all I need to buy for the week are any other items to complete the meals. I buy salads and vegetables on alternate weeks - one week we have salad with everything, the next week I buy vegetables for all our meals. It may sound an unusual way of shopping, but this way there is no wastage; unlike when I used to buy both.

I don’t buy everything in bulk, but some items work out more economical, such as:
Bread - I buy bread from Coles after 6pm to take advantage of the markdowns - for example, $0.50c for a packet of bread rolls, or a loaf of bread.
Chickens - Patton’s, our local butcher have many great specials, including chickens for $2.50 each. I buy ten at a time and freeze them; they may not be huge, but plenty enough for a family meal, plus leftovers for sandwiches.
Fish - ALDI have oven bake fish for $2.00 per packet (the cheaper of the two
versions). They are like large fish fingers, and perfect for us. Combined
with the chips or potato gems, the whole meal for a family of four comes to $4.00.
This is a standard meal for us, and I make sure I buy plenty to last between ALDI visits. Ice cream - I wait for special offers so I can purchase five litres for $5.00 and buy in bulk.
It also pays to buy washing powder and toilet paper in bulk when on special, as they don't go off and you will always need them!

When I was planning my meals around the supermarket brochures, my shopping list was actually doubling - that was without any impulse buying as well! Another thing I also now do to cut down costs, is alternate a meat meal, with a non-meat meal. You will see from the menu plan above how we eat meat and vegetables one night, baked beans the next, or pasta bake and so on. We enjoy our meat, but find we can cope with every second meal being meat based, and it really keeps costs down.

We don’t eat cereal every day for breakfast, it works out too expensive - it’s actually more expensive to eat than steak! We have toast, eggs or grilled tomatoes. With the children, lunches are mainly sandwiches; the kids like their Vegemite, peanut butter and Nutella; the adults make use of any leftover meat. For school lunches, I dropped most of the expensive packaged goods (for example, Rollups) in favour of two sandwiches and a piece of fruit. They still have a lunchbox treat now and then, but it’s sometimes, not everyday.

One tip I have learned which has really helped me is that the family actually prefers me to cook from their range of ‘family favourites’, rather than consulting cookbooks or fancy magazines. If this is what they enjoy - stick to it and save yourself the time and money!

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!

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 add a supermarket gift card to my weekly grocery list and use them all up to shop for Christmas! After doing some calculations I realised that the ready-made Christmas hampers that you pay for weekly cost three times their actual value, not to mention the fact that they can include many products you won't ever use. My new system for buying Christmas groceries lets me buy my own hamper full of items at the current price or on special.

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.

Here's how to lose weight and save!

A couple of years ago I joined Weight Watchers and went to four meetings. Joining was free from a coupon in a magazine but the meetings cost something like $15.95 each. I couldn't get motivated!

A few weeks ago, as I was bucketing the bath water into the toilet cistern to save water (a tip from Simple Savings), I realised that I am doing the exact same thing that Weight Watchers meetings could not motivate me to do. At WW the main things they encourage you to do are to eat 10% less at meals (this also helps the budget at shopping time) and to exercise more (this comes from carting water between the bath and the toilet and using the rain water tank to water the vegie patch and so on).

I am now losing about half a kilogram a week without even trying and I'm not paying $16 to do it. In fact, I'm making other savings as well - our last water bill was $40 less than that for the same time last year.

What has also happened for me in the last few months is that while saving money I have also become better at time management - planning meals for a month and shopping with a list have cut out a lot of unnecessary trips to the shops (not to mention the extra expense). I have cut $60 from my husband's spending money by supplying his lunch every day, along with some soft drink, a large bottle of water and a snack. He is happy because he still has a small amount of 'sanity money' in his pocket to splurge with every week.

My food budget absorbed this when I switched from a lot of brand name products to BI-LO brand products - I save from as little as $0.10c per item up to a couple of dollars per item. The biggest savings I make come from bulk buying - last month BI-LO had five kilograms of potatoes for $5.00, but when I went to the greengrocers they had them at $6.00 for a 20 kilo bag. These lasted for about a month and I couldn't bring myself to go to the fish and chip shop when I had 15 kilograms of 'free' potatoes in the pantry, so we had home-made wedges instead, saving another $6.00.

The excitement of saving money has also inspired me to do the things that I don't enjoy so much, such as mending and ironing, and I am gradually working my way through every room and cupboard, taking inventory of what can be used and how best to use it in a way that will save me money. I never thought I would actually look forward to going through years of accumulated junk! By organising my house, I am becoming a 'cleanie' and leaving the old 'messy' me behind - and I am enjoying every minute of it!

I love making scones, and my Mum passed on this wee hint which makes my scones even better.

When the scone recipe calls for milk, use half milk and half water. For some reason, the water makes the scones extra light with the added bonus that it drastically cuts down on your milk usage.

Last Christmas, instead of buying everyone gifts, I bought some small gift boxes for $2.00 each at cheap stores and baked mini puddings and mini rum balls (I made heaps from one recipe), which I put in the boxes. I then tied them with a length of curling ribbon to make them look attractive. Everyone loved the goodies inside, and the maximum cost was $20 for at least six boxes.

I will definitely be doing this again this year. It will probably become a tradition - and why not?

Want to freeze cream without it becoming a watery mess once it's defrosted? The secret is to whip it before you freeze it. Defrost it naturally and you would never have known it was frozen.

This method lets me buy brand name cream when it’s on sale, usually as it's reaching its use by date. I whip it up, portion it off into 100ml containers and throw it in the freezer. I no longer have to worry about buying a full container of cream, then trying to think of how to use it all up before it reaches its expiry date. No more waste!