Make every cake of soap last twice as long

To make a cake of soap last twice as long, simply paint the top or bottom with some PVA wood glue and let dry. Doing this means only one side of the soap dissolves, enabling the cake to last double the time. I paint the top side of the cakes of soap when we bring them home. Sometimes my granddaughter even glues a pretty picture to the side!

DIY 'Cryovac' seals your food at home for free!

My savvy DIY food sealing method has saved me a fortune and is so easy! I like to organise meals ahead of time, and have at times thrown out food due to serve freezer burn. I researched Cryovac machines, but priced at anywhere from $400 - $500, not to mention constantly buying bags, it was out of the question. So I came up with a solution! I fill up a container, or the kitchen sink, and when I have the meals prepared in bags and ready to go, I slowly lower it into the water until it is almost level with the top of the bag. Then I just seal it shut. The water forces the bag together and pushes out the air. It works a treat and I have saved hundreds not having to buy a machine, replacement bags and also power!

Chemical-free toilet bowl freshener

This simple tip saves money on toilet cleaners and air fresheners! A cheap and easy way to keep the toilet clean and smelling fresh is to make your own antibacterial spray. I have a spray bottle on the window sill filled with water and a few drops of tea tree oil. After each flush, we spray two or three squirts in the toilet bowl and close the lid. It keeps the room smelling lovely and our toilet sparkling clean without yucky chemicals.

$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.