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!

Lock in fuel savings and make them last!

Our household has found a super easy way to make the most of cheap fuel prices. We watch the fuel cycles with the ACCC petrol price cycles website (https://www.accc.gov.au/consumers/petrol-diesel-lpg/petrol-price-cycles). When it is getting to the lowest point of the cycle, as well as our vehicle, we also fill up five 20 litre fuel containers. If it is inconvenient to do so, we prepay and lock in the fuel price on both of our phones on the 7/11 app. This guarantees that locked price for seven days. We then use that fuel through the next 3-4 weeks (the length of the fuel cycle generally). It's like having our own petrol station at home!

Fuel containers cost around $20-$25 at BCF and the savings per cycle paid for each container. Now it's pure savings of $30 per cycle. Petrol works out around $520 per year less for us, for very little effort! At first, my husband was concerned that the fuel may not last (he is a qualified mechanic), but I showed him some tests BP had done on this matter, finding that six months later, the values were still the same. We notice zero difference in fuel consumption, km/L, or parts wearing out any faster.

Everyone we tell thinks this is an amazing idea, we find it strange that no one else seems to have thought of it!

Puzzling our way to a new house

My husband and I have finally found the key to successful saving! The two of us are dreadful savers; while we're good at putting spare change in a jar, we don't know what to do with it once the jar is full! We thought a saving thermometer would be helpful, but wanted something that wouldn't be so obvious when people came over to visit. So we came up with a more subtle brainwave - a jigsaw puzzle!

We bought a jigsaw of what we wanted (a house) and assigned a dollar amount to every piece. Now we 'buy' pieces of the jigsaw puzzle, the money goes in our jar and we bank the money once a month. We even set up challenges for ourselves, such as who 'buys' the most pieces in a month, and we never have to worry about what to buy each other for presents - we buy pieces of the puzzle of course! Once we've completed the puzzle we're going to hang it on the wall - of our new house!

A Challenge for life

After reading The $21 Challenge, I thought I would see which other areas of my life I could apply the Challenge to.

First, I opened a separate bank account and now deposit $21 every week before I do anything else with my money. I see this as a type of retirement fund – it will be nice to see the funds in 30 years time!

My next $21 Challenge is to only put $21 worth of petrol in my car each week. I will park my car further away from where I need to go; this will save money and improve my fitness and wellbeing.

When my phone contract ends soon, I am going to challenge myself to spend no more than $21 on pre-paid phone credit each month - now that will be a challenge!

There are so many ways we can implement the $21 Challenge in our lives, thanks to Fiona and Jackie's inspirational book.