Tomato paste doubles as cheap puree

Tomato paste saves me valuable dollars on buying puree! Whenever a recipe calls for tomato puree, I just use a sachet of tomato paste and then add water to it to make it up to whatever quantity of puree is required. It works as well and tastes just as good. I like to buy the Delmaine concentrated tomato paste, which comes in four little tubs of 70gm each. It is so versatile, and compared to tomato paste takes up far less room in the pantry!

Bundle up your bags and don't get caught short

I have come up with a super easy way to solve my shopping bag dilemma! Like many people, I was sick of trying to organise a whole bunch of bags of different shapes and sizes in the back of the car, ready for shopping trips. I really like my car to be free from clutter, so wanted a thrifty and simple solution, I decided to use an old cosmetic purse and filled it with 99c reusable nylon bags from the supermarket. These roll up tiny and fasten with a elastic tab, making a neat and tidy little roll. I can fit eight of the tiny rolls into my cosmetic purse and this in turn fits nicely into my handbag or centre console of the car. These days I never get caught without a bag and these ones can get used over and over again. Being made of material, they can also be thrown into the washing machine if they have had meat or something drippy in them and are soon as good as new again!

$21 Challenge helps two families

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.

The real cost of spending

I have turned my love of a good bargain into something far more valuable! Whenever I am tempted to buy something I could possibly do without, I first calculate how much we would save by paying that money into our mortgage instead. For example, I recently saw a new dress on sale for $49.99 - a bargain, right? However, I paid a quick visit to a mortgage calculator website and discovered that if I didn't buy the dress and put that money onto our mortgage instead, it would take a whole month off the loan term and save us $334.39c in interest. In other words, my 'bargain' dress would really cost me over $300!

Looking at my purchases this way has become a really easy and effective way to curb my spending habit. Now I carry a piece of paper in my wallet with various prices on and I can see how much I would really be spending. It's amazing how much stronger my willpower becomes when I check my piece of paper before buying something and find out what its real cost is!