Sock it to draughts with cheap 'door snakes'

With every winter, it's important to make our heating systems as efficient as possible. Draughts under doors (both to outside and to rooms not currently being used) let heat escape, driving heating costs up. Door snakes are often advertised at around $10 each. This means for a whole house you may be looking close to $100. Instead, you can use a pair of men's long, knee-high socks! These can be filled with rice (or sand if you have easy access to it). Either tie a knot or see the top to seal. You can purchase ind the socks at cheap shops or ok shops, use the cheapest rice you can buy and you can make a house-full for less than the price of one commercially produced door snake.

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!

Clean baths and basins with Sunlight soap

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.

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.