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.

A novel idea to help my Mum save on new ceiling fans has led to some fantastic and unexpected long-term savings! After being quoted a whopping $160 per unit (pensioner rate) to get ceiling fans installed, we took matters into our own hands and placed an advertisement on local notice boards. It read: 'Experienced licensed electrician required to install three ceiling fans. I would like to trade the costs by doing your washing and ironing for one month.’

Within a few days, Mum had received several enquiries and selected a nice, young single guy who needed a 'mother's touch' to some of his clothes - a lot of stain removal and buttons re-sewn. He installed the fans and dropped and picked the clothes up from her place on a weekly basis. To our surprise we learned he also had connections to plumbers and gardeners and she was soon able to have her bathroom wall retiled in exchange for scrubbing out an oven and re-organising a food pantry for a couple that were having a baby soon.

It didn’t stop there! Before long she was taking up hems, sewing on buttons and doing basic mending in exchange for garden maintenance and mowing lawns. These guys are ripping up old items from homes every day with their trades so these days they even search around to find her the cheapest - or even free - items if she needs them, as well as providing an oven door and dials on her heater for free. They often come across things that others could use but end up in the tip instead.

As a pensioner, Mum has time on her hands and is very experienced in household chores but has a limited income. This trade of skills and services means she can now carry out tasks within her ability and has made some fantastic friends. Her place looks amazing and is she even happy to do babysitting for the families. In turn they really appreciate having a cuddly grandmother figure around. She has a new purpose and a whole new social network too - in fact she looks 10 years younger!

For many people juggling work, family and study, time is the most important saving they can make. I work four days a week, have a three-year-old and studied part-time for a diploma for a year. I got by with these time-saving tips:

1. Lowering my expectations for the house. I don't need a spotless house, but a tidy and lived-in home.

2. Doing my housework little and often, rather than spending huge amounts of time tidying up. I do things like:

- put my little one's daycare bag together for the next day as soon as we get home in the afternoon.
- cook my lunches (pasta and sauce, muffins and so on) once a week and freeze them.
- put my lunch box together from the freezer in the evening.
- clean the toilet by putting a teaspoon of Napisan in it each night. It soaks overnight and the bowl is clean with the next flush.
- do laundry when enough for a load accumulates so we don't have a sudden clothes drought, then an avalanche of laundry to do and put away.

3. Exercising on a stationary bike in front of the TV in the evenings after my little one is in bed.

4. Programming our DVD recorder once a week (Sundays when we get the new TV guide) so I don't miss my favourite shows.

5. Filling cereal bowls with water if I am rushing and have to leave the breakfast things. This makes them easier to clean later and stops ants.

6. Trying not to double handle things. Rubbish goes straight in the bin, meat is put in meal size portions in plastic bags and frozen as soon as it gets home, magazine subscriptions go straight to magazine rack when they arrive in mail.

7. Leaving rooms better than when I arrived, so the need to tidy doesn't build up. It only takes five minutes to put laundry from the floor to the hamper, make the bed, wipe a bench, replenish the toilet paper.

8. Recruiting my little one to help - she's only three but she can put dirty dishes in the sink, put toys away in her room, dirty clothes in the hamper.

9. Shopping for groceries by myself in the evening so hubby can watch his TV shows in peace and I am not tempted to go to other stores as only the supermarket is open. Also many things are marked down at that time.

10. Trying to do three things for myself that make me feel happy each day, like listen to podcasts while I do the housework.

11. Writing the shopping list progressively through the week so I can pick it up and go when it's time to do groceries.

12. Storing the bedding in storage containers under each bed so it's quick to make the bed, especially when changing my little one's wet sheets in the middle of the night.

13. Shopping for presents at sales during the year (online or in stores) so I don't need to go to crowded stores during the Christmas rush.

14. Not beating myself up if I find lifestyle changes tricky at first - I am afterall human!

I can make hundreds of litres of liquid plant food from just $12 worth of Dynamic Lifter pellets! This will buy a 10kg bag. Just add around four handfuls of pellets to a nine litre bucket of water and let steep for a couple of days, mixing occasionally. When you have a nice 'tea', pour a couple of litres of the liquid, into a nine litre watering can, top up with water and give your garden a drink. Repeat until all the 'tea' is gone, then add more water to the residual at the bottom of the bucket and repeat this process. As the mixture gets weaker, you can use on seedlings, vegetables and more delicate plants such as azaleas and gardenias. The 'weak' mixture can be used as a health tonic or sprayed directly onto the foliage of plants (remember not to spray if the weather is over 20 degrees Celsius, as this will burn the foliage). Once you get to the real weak stuff, simply pour the residual under a tree and water in well.

You can also make hundreds of litres of liquid fertiliser from a 10kg bag of Blood and Bone pellets at an initial cost of approxiamtely $1.20 per kilo. Compared to a litre bottle of liquid plant food (such as Seasol) which costs about $10 and will make just over 300 nine litre buckets (going on the manufacturer's average of 30ml per bucket), your bag will make many hundreds of buckets of first grade solution followed by many more second and third grade 'weak' solutions which are ideal for foliar feeding. A huge saving, which will give you enough fertiliser to last you a whole year or more!

This hint was a saviour during our last $21 Challenge.

The girls were looking for lunch and complained there was nothing to eat, so I found a large plastic platter and put the following treats on it:

A leftover BBQ sausage, thinly sliced

Two slices of leftover bread, buttered and cut into quarters

A diced kiwifruit

Four strawberries

A small piece of cheese, diced

1/4 tin corn kernels in a lettuce leaf

A muffin, cut in quarters

Four leftover chicken nuggets, cut in halves

A dob of cream cheese with a little corn relish mixed in

Four cucumber slices

Four cherry tomatoes

One Vita Wheat, halved

I gave the girls and myself a saucer each, plus a cocktail fork and everything was eaten and enjoyed. Now we often have 'platter parties' for meals and snacks. A novel way to serve up a meal when you have 'nothing' to eat!

I am on a very, very low income, so I budget for every bill and expense. I put away bill money every fortnight and that way I have all my bills covered as they arrive, and we seem to just spend the rest. Last year I decided to pay me as a bill, so every pay day I pay me first, just $50. I now have over $1200 in savings. I can't believe how easy it is; just pay yourself before everyone else. The first couple of pays it was an effort not to touch it, but as soon as I saw it mounting up, I got very excited. I tell myself all the time that money is power. While $1200 is not much to some people, to me it's a fortune. Try it - it empowers you.

Our family is living proof that with a sensible outlook and good, honest hard work anything is possible. Our 'ugly duckling' house has gone from being the worst house to the best house in the street. Unfortunately the cost of renovating and extending it cut into our interior design budget. However we discovered that we could still furnish our dream home beautifully on a reduced budget by settling for second hand items.

For example, our curtains are fully lined and are gorgeous! One window was not a standard size and the quote for its curtains alone was $1500. Instead I found a perfect set at the op shop to fit our huge window for only $40! We have now finished the curtaining for a total cost of $250, saving us $5,000 on the original quotes. We have also bought stunning soft furnishings such as cushions, throws and floor rugs, again from op shops. Furniture we have picked up either second hand, from op shops or passed on from family. We have painted and scrubbed these pieces and now have a very up to date 'beach/country chic' look, all for little cost. The house is now finished and it looks stunning inside and out. We have Edwardian steamer chairs outside on the balcony bought for $2.00 each from the op shop. What a bargain! Our friends and family are amazed.

We now go to op shops first for all of our clothes. Our teenage kids really appreciate their 'brand name' bargains, such as polo shirts for $8 where the normal price would be $100 and many other items. I recently bought my husband a brand new dinner suit on "half price day" for $7.50! When you buy from op shops you pay cash - no credit card debt for us!

Every spare cent goes into paying off our mortgage and the house is almost paid off. We have worked hard doing a lot of building and landscaping work ourselves, as well as the interior, to save money. We live like kings but our outgoings are carefully calculated. We have taught our kids the benefits of hard work, and sensible spending. We are very proud of our lifestyle and the happiness it has brought us.

Try this impressive five star dinner for any special occasion (perfect for Valentine's Day!) for under $25!

This Valentine's Day, instead of the obligatory card swapping and outrageously priced meals at restaurants, my husband and I decided to make a concerted effort and have dinner at home.

He wanted to suprise me by serving Chateaubriand (eye fillet steak with Bearnaise sauce), which he adores. I, in turn wanted to make him Tiramisu, which has always been his favourite.

While he was out shopping, I whipped up dessert and then locked myself in the study.

After searching the Internet for intimate dinner ideas, I found every possible candle in the house and arranged them throughout our dining & lounge area!

Church candles on candlesticks and on plain white saucers, a runway of 15 tealights on gold tulle ribbon along the middle of the dinner table and on various other side tables and shelves (from my '$6.95-for-100' pack I bought at the Warehouse three years ago and am still using)!

I set the table for two and found some Miles Davis jazz CDs, bought from the Sanity bargain boxes for $6.99 each.

I then went back to my PC and set about writing not a Valentine's card, but a Valentine letter, which I bordered with clipart from a free site. After two pages, I knew that my words were more personal than any Hallmark card, and also it saved me $5.95.

I lit the candles, put on the music and our room had transformed with all the ambience of a private dining suite at a five star restaurant. My husband was lost for words!

Dinner and conversation was wonderful and during the night, our discussion turned to the cost - and saving - of our meal and we both agreed that it was far better to have stayed in than gone out.

Chateaubriand normally costs between $60-$70 for two; ours cost a grand total of $20.45 for two, including vegetables. We could have easily served three from it.

Tiramisu can cost between $7.50 up to $15 each at a restaurant. I bought the ingredients for half the recipe I found and at a total of $7.34, I still made 4 serves ($1.84 each).

Our wine was chosen from our wine rack, saved from previous dinners and occasions, saving us up to $40 on a restaurant bottle.

Altogether, our 'restaurant' dinner cost us $24.12, as opposed to a potential bill of up to $120 if we had dined out. We further saved on fuel, parking and a babysitter as the baby was home with us (asleep).

With the time we saved on travelling, we continued to talk, dance and enjoy each others company without any interruption.

The letter I wrote my husband brought him to a tear, and us just a little closer. As I sat there I realised the effort and surprise we gave to one another was priceless!