My kids love doing things on Saturdays but even a trip to the movies for our family costs $70. So I invented '$20 Saturday'. We could go anywhere and do anything as long as it didn't cost more than $20 for the whole day. One Saturday each month we would find a spot in the street directory that looked interesting and take a picnic, other times we visited free places such as museums or community festivals and the $20 bought a drink, small snack or ice cream. Not every place was terrific but we gave each place or activity a score to rate whether we would like to do it again. My boys talk fondly of things we did together and places we visited on $20 Saturdays and they learn that you don't have to spend up big to have fun.

Christmas 2009 was the worst I ever had, having just separated from my husband. At almost 50 I found myself homeless with no money. On the 16th of December I found a share accommodation but had to borrow money from friends to pay for my bond and two weeks rent so that I could have a roof over my head. The only job I was able to do to keep me going was as a housekeeper, yet I could hardly pay for the petrol to get to work.

For four weeks, I avoided going to the shops. I am 90% vegetarian so decided to grow all the vegetables I like to eat at my rented home. I collected some seeds, seedlings and cuttings from friends and customers and decided to spend my last $10 for chicken wire to protect my homegrown herbs and vegetables from possums and bush turkeys. I am spending time tending my garden every day and I now have lettuces, beans, cucumbers, cherry tomatoes, herbs and so on for salads and stir fries every day. I even have enough to give some to my friends and customers to thank them for helping me to stand on my own feet and living a healthy life. This week I only spent $16 for organic eggs, milk, a tin of pink salmon and a loaf of bread. These with my homegrown herbs and vegetables will give me a healthy diet for the whole week. I am saving heaps to pay my debts as fast as I can.

At soon-to-be-50 and with no savings, I bought The $21 Challenge book to challenge myself. I am so excited because I spent years of feeding a family of four and now I am alone I have absolute control of what I spend and what I put in my mouth. I feel liberated, I feel young and full of energy. Having less money in 2010 is more enjoyable than my stressful life in 2009!

I have discovered that reversing my old way of shopping is much easier on my pension! Previously I always used to menu plan first, then go to the shops and walk up and down the aisles getting the things on my list (plus plenty that wasn't)! However once we retired I soon realised this was no longer working. I was spending more than we could afford at the supermarket and greengrocer. I needed to find a better way - and I found one!

These days, I do my menu planning and shopping the other way round. I go to the supermarket once a week and buy whatever is marked down. For example, this week I found Wagyu sausages down from $6.95 to $3 for six. That's enough to make three meals for the two of us! I also bought 4kg of chicken breasts marked down to $5.99 a kilo. I can mince some for lasagne, chop some for curries, cut strips for sate or just poach some for sandwiches. Either way I will get at least at least 20 meals for the $45 I spent!

The same goes for the greengrocer. Instead of planning what I was going to buy in advance I now only buy what he has outside in boxes on special. I pick out the best deals, then come home and menu plan around what I have bought. I am finding this so much better on the wallet and would encourage anyone to give it a go!

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.

A great way of enjoying a fun activity while learning a valuable skill is to teach your kids to cook. I set up cooking lessons once a week after school for my two girls and their two cousins in our kitchen at home. The focus is on one recipe each week, something they can bake and take home. It's all about the kids having hands-on fun and there is a lot of chatter and laughter. The kids love it!

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 save over $50 per month on skin care preparations for my children's teenage skin. With four of them, I have spent a fortune over the years on pimple creams, Panoxyl at $12 a tube and the latest Diprovan cream at $52 per month.

Once, we ran out and in exasperation I advised my daughter to use bicarbonate of soda and lemon juice. It works! Cut a lemon in half and save one half covered in the fridge for later use. Rub the other half on affected areas and use as a cleanser. Rinse, then cut a slice off the top, wrap in cling film and place in the fridge. Then mix one teaspoon of bicarbonate of soda with a small amount of water to make a paste. Dab onto affected pimples and leave for half an hour. Then rinse off. (Perfect for evenings when doing homework!)

The lemon acts as an astringent and is antibacterial. The bi-carb dries up the excess oil causing the pimple.

For a cheap and effective moisturiser we use Vaseline Intensive Care at $8.00 a bottle, which lasts six months. A total cost of $26 (lemons from the garden) per year and my daughter has recommended this to all her friends. Much better than $600 spent at the chemist each year!

My husband and I have become '30 Day Gourmets' and enjoy both the savings and the extra time we spend together as a result! We recently looked into 'Once a Month Cooking', which we were interested in because neither of us really enjoys cooking tea when all we really feel like doing is relaxing after being at work.

After gathering ideas of how the scheme works (literally - you cook once a month!), we thought we would try it by cooking for a fortnight first. We gathered recipes from the Internet and raided the recipe books (the recipe must be able to be frozen) and came up with such things as marinated chicken, curried sausages, spaghetti sauce, apricot chicken and all kinds of things.

We then picked a Sunday, turned up the stereo and did nothing but cook! It turned out to be a really enjoyable day. Once cooked and cooled, the food is put into freezer bags or takeaway containers (which cost almost nothing) and frozen. What we thought would last two weeks actually lasted three!

Each night, I would take out a container or bag for the next night and leave to defrost in the fridge. We then dragged out the steamer, threw in all the vegetables and once a week cooked up a big pot of rice. We would then have a small portion of meat (which also lowers fat-intake levels), have a pile of yummy steamed vegies and a little rice - the result being full bellies, smiling faces and very minimal washing up!

This not only saved us money but also time. Usually groceries cost us $150 for two weeks. With the cost of buying meat and grocery items needed for the cook-up ($100) and in-between buyings of vegetables once a week ($10), we spent a total of $130 when we would have spent over $150. (This is because at each shop we would grab things we liked, but didn't really need). Having a selection of meals already cooked for the weeks ahead feels great!

At first a big cook-up seems difficult if you aren't motivated, but you can start small and next time you are cooking something that would freeze well, cook double or triple the recipe and freeze excess. I also went to the local library and got out some books on freezer cooking which also had suitable recipes in them.

My husband and I honestly can't believe how we survived before our cook-ups and love the idea of actually doing things we want to each night, rather than being a slave to the kitchen!

NB - A book from the library which was a big help in planning recipes was 'The Freezer Cooking Manual from 30 Day Gourmet'. The '30 Day Gourmet' book is available on eBay and from most bookstores.

I am saving around $8.00 a week on expensive air fresheners and bug sprays, thanks to a kitchen mishap! After spilling some cloves during Christmas cooking, I boiled them in 250ml of water. The house smelled wonderful! I let them soak for a couple of days, then poured the water into a spray bottle where it became an instant room and cupboard fragrance. I use the spray to wipe all the kitchen cupboards and not only does it keep bugs away, the aroma is delicious whenever I open the cupboard. No more expensive chemical sprays for me!