This all-natural home-made mosquito repellent costs around $3.00 for a small spray bottle and is kind to your skin and the environment. Mix 50ml of sweet almond oil, 10ml of dettol, 10ml of citronella oil and 10ml of eucalyptus oil in a spray bottle and shake well. We have been using this recipe successfully all summer with no bites and no staining on our clothes.

Our wonderful daughter is a saver on the grandest scale. At 29 years old and earning a modest wage, she is building her first mortgage free home on five acres; as well as flying out to Bali for a holiday! She has had several serious health problems but is amazing in her efforts to follow her plan, thanks to the support of her equally admirable husband. Their two horses and two dogs are greatly loved and their lifestyle is totally free of unnecessary expenditure. They own their block of land, furniture and vehicles as they need them to drive to work.

To save rent while rebuilding they bought a duplex then removed junk, scrubbed, painted and renovated by finding the best way to build fences, roof a pergola and fix the faults. Meanwhile they have fenced their own block of land, installed gates, had a bore sunk, built open stables themselves with salvaged material and negotiated the big expenses of shed, driveway and site costs.

They are not without experience as she purchased her first property at 19, a unit which she and her father gutted and renovated. Her husband joined in and renovated a property, then they renovated a joint property before they purchased five acres, built a house and developed it for resale so that they could buy their current land. Recycling has included rescuing old baths for horse water troughs, finding a kitchen sink for a fish cleaning bench and rebuilding an old horse float. They planted and watered tube stock trees, had family members grow cuttings and even used the horses to mow the lawns. In fact one horse was purchased for the knacker's fee and the other was free.

No, she hasn't benefitted from a first home buyer's grant as she was too young at the time of her first unit, or from family gifts. Just planning, following her dream and sticking to the budget. It works!

One year a friend gave me a money tin and on the side of it was printed, 'If you fill this tin with only gold coins by the time it's full you will have at least $500'. It really didn't look big enough to hold that amount of money, but I love a challenge so I decided to find out if it could!

We started in March and any gold coins we had went into the tin. Our goal was to open the tin at Christmas and use it to pay off lay-bys plus have some spending money over the Christmas break.

November rolled around and the tin wasn't quite full. However, when we opened it up and counted our 'gold' we were very surprised and extremely happy to discover we had collected $700 in our little tin!

Because of that little treasure chest of gold we enjoyed a fantastic stress-free Christmas! I was able to pay for all the presents for our immediate and extended family as well as cater for a great Christmas day feast, AND we had spending money left over for the holidays.

Now it's a family tradition. My sceptical husband happily donates all his gold coins to the tin and my 12-year-old will go hunting for gold coins just to add them to the collection! I know that I don't have to worry about the financial strain of Christmas any more as my tin has got it covered.

Instead of paying for one expensive doona, and the dry cleaning costs that come with it, buy two or three cheap doonas, pin them together at the corners, and put them into the same doona cover.

Because cheap doonas are thinner, you can wash them one at a time in your washing machine, and you can also adjust the warmth. When the weather starts getting warmer, just take one doona out of the cover and put it away in the cupboard.

Think twice before you buy an expensive bathroom cleaner to clean your acrylic bath, vanity basin and laundry tub. Try Sunlight soap - it works wonders!

After recently having a dint repaired in my three-year-old acrylic bath (the kids were too rough with their bath toys!), I asked a man who repairs acrylic baths, basins, and so on what the best cleaning product was to use on this surface. I was amazed to hear that good old Sunlight soap was the best. He said most of the marketed products available eventually wear the surface and take off the shine, then people have to pay him hundreds of dollars to get that shine back again!

I decided to try it for myself. I purchased a pack of Sunlight soap (four in a pack) for $2.09 at Coles (with even cheaper generic brands available). One cake of soap lasted me for six months - that's just over $0.50c for six months of cleaning the bath, vanity basin and laundry tub. Best of all, it really works! Also, it leaves a wonderful shine; I was really impressed. I use an old sports sock over my hand and foam up the soap, then I clean away - all that soap scum and grime easily vanishes.

Keep glass showers sparkling clean for months at a time by using baby oil. First, clean the glass on the inside of the shower well, then dry off. Next, take a soft cloth and smear a small amount of baby oil. I stress a SMALL amount to ensure no oil runs down to the base of the shower, creating a potential hazard. Pay extra attention to wiping the edges and bottom of the glass. Once you have done this, the glass will look smeary and quite awful really - until you have the next shower! The hot water heats the oil and smooths it out on the glass. I have never had the problem of any oil running down onto the floor, even after heating it. You'll find a very small amount goes a very long way. Basically, the soap scum cannot attach itself to the glass, which stays clean and clear for at least three months at a time. By needing to re-apply the baby oil only every few months, this adds up to a huge saving in expensive bathroom cleaners!

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 saved a fortune on laminating costs over the years, by doing my own at home. I don't have a laminating machine though - I don't need one! I just buy the laminating pouches I need and get exactly the same effect using my household iron on a low setting. You just need to ensure you are working on a fairly rigid surface - if your ironing board is too 'spongy', strengthen the surface by adding a piece of cardboard, covered with cloth before laminating. When applying the iron, put a cloth or other fabric between the plastic and the iron. The results are just the same as using a machine and the heat will gently fuse the pouch together. I have done this for so long, that I don't know how much laminating costs any more, because I never pay to have it done!

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 recently noticed my elderly neighbour was unwell and no longer able to drive or leave the house; relying on taxi services to deliver food (often expensive pre-packaged items), or he would have home delivered takeaways. Being a fussy eater, he was reluctant to consider 'Meals on Wheels', so I volunteered to shop for him and cook him three different meals a week. Each week he gives me enough money to cover the costs of his meals (soups/stews/freezable casseroles) and I make up bulk amounts of each dish. I deliver half to him and keep half for myself, as suggested by him for payment. Not only is he saving money on taxis and home delivery, but he is eating healthy food and my family is also provided with three meals a week as a bonus for giving up a little of my time. Often cooking for one is not inviting, but cooking for others encourages healthier eating habits and helps regain social contact. Often a lonely person will gain a new lease on life to boot. A great savings all round, and using recipes from the Vault saves me even more!