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.

Make over 120 bickies for just $4.00! This fantastic basic bickie recipe is terrific value, makes loads and has lots of room for variations:

500g margarine
1 tin condensed milk
1 cup sugar
5 cups self-raising flour

Cream sugar and margarine. Add condensed milk and flour. Roll into teaspoon sized balls and press down with a fork. Place on greased trays and bake in moderate oven until golden brown (approximately 10-15 minutes).

Before baking I divide the mixture into five and add the following ingredients for different flavoured bickies:
1. Chocolate chips and glace cherries (chopped)
2. Cornflakes and sultanas
3. Hundreds and Thousands
4. Jam drops
5. Milo and coconut

You could add any number of other things like Rice Bubbles, Smarties, nuts, cinnamon and other spices and so on. The raw mixture can be frozen in balls, just thaw slightly before baking.

From this one batch we made 123 bickies and by my calculations using the cheapest possible ingredients, the whole batch cost just over $4.00 to make!

When someone you know has a baby, it can be hard to choose a gift that will be appreciated – but this gift is always well received!

I like to give new parents the gift of dinner for a week, which is delivered each night. In the weeks leading up to the due date, I cook and freeze meals that will feed my family and theirs. It gives the new parents one less thing to worry about as they are settling in with their baby, and ensures they are not living on takeaway food.

I make things like pasta sauce, casseroles, soup and garlic bread. Roast dinners and chicken salads are easy to make fresh in large amounts and I also bake cakes and biscuits so they have something to offer their visitors. If they have school age kids, I even give them food for their lunchboxes such as slices of cake, sandwiches, pizza rolls and muffins.

This may not be as spectacular as a large gift with a bow, but all my friends say that it was their best gift, as they are so tired by the afternoon that the last thing they want to think about is cooking dinner.

Make all your leftovers taste fantastic with this bulk white sauce mix. Makes enough for 24 servings and you can keep it in the fridge:

2 cups (500g) powdered milk (I use skim)
1 cup (250g) plain flour
2 teaspoons salt
1 cup (250g) butter or margarine.

Combine dry ingredients, add butter and blend until mix resembles dry breadcrumbs. Put in large air tight container. Store in fridge. Use within two months. I label the container with the date and method.

Method:-
To make sauce combine, 1/2 cup mix to 1 cup
cool water. Add flavourings to suit, for example, curry, vegetables, onions, cheese, whatever you like!

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.

Follow Jamie Oliver's example and make your own chicken nuggets - it's healthier and cheaper! We used to buy the cheap brands of chicken nuggets but after realising how much of their content was fat/skin/fillers and other unmentionables, we switched to only buying breast nuggets or pieces. However, this soon proved really expensive and they often still have fillers. So I came up with a better way and found this home-made version is much tastier too!

Buy chicken breast fillets or tenderloins on special - I usually get them for between $9 and $10 a kilo. If using breast fillets, slice them into smaller and thinner pieces. Remove the tenderloin as one piece, then fillet the chicken into similar sized bits. Dip them in melted butter, then roll in breadcrumbs (press on firmly). I often use hot and spicy breadcrumbs, or stuffing mixes to add more flavour to the crumbs, but you can just use leftover stale bread crumbed in the food processor and save even more money! Layer the chicken in baking paper, then cover in plastic and freeze until frozen. Remove and separate into ziplock bags or suitable storage container.

When ready to cook, place in preheated oven and bake at approximately 200°C for half an hour, depending on the size of the pieces. Small boxes of prepared commercial fillet pieces/tenderloins cost approximately $7.00 for as little as 400g. In comparison, a one-kilo batch for $10 makes at least three times that amount - and without any junk fillers, additives and skin!

Last Christmas, instead of buying everyone gifts, I bought some small gift boxes for $2.00 each at cheap stores and baked mini puddings and mini rum balls (I made heaps from one recipe), which I put in the boxes. I then tied them with a length of curling ribbon to make them look attractive. Everyone loved the goodies inside, and the maximum cost was $20 for at least six boxes.

I will definitely be doing this again this year. It will probably become a tradition - and why not?

For just $10 I've finally discovered soft skin. I had always suffered from dry skin and, over the years, had spent a fortune on moisturisers in every price range. I never really found anything that I could put on at night which left my skin soft and moist in the morning. It seemed my skin was always thirsty. Then I read in Vogue magazine, about a woman who used Neutrogena Norwegian Hand Cream as a facial mask. She also suffered from dry skin and her dermatologist had advised her to do this. Having nothing to lose, I decided to give it a go myself. It costs well under $10 and is available at Priceline and in most supermarkets. I chose the fragrance-free one and can honestly say it is the best moisturiser I have ever used. I use it every day under make-up and my skin looks 'dewy' all day long. I apply more in the evening before bed and my skin feels lovely in the morning. I even apply it thickly as a mask sometimes, with great results - and it beats a facial in terms of how my skin feels the next day. So if you have dry or mature skin - give it a try. It is also amazing on dry feet - it really is a miracle! It's amazing to think of how many dollars I will save from now on on my new, simple skincare product!

As part of my $21 Challenge to use all the food in the pantry, I have set up a 'use up soon' basket containing items getting close to their use-by date. This way, I will remember to use things before I have to throw them out.

I came up with a great low cost, low stress way to feed the crowds at my son's 21st birthday party. With the weather being chillier, the food needed to be warming and more robust than usual. I came up with the idea of a crockpot party! I am borrowing family members' and friends' crockpots and am filling them in the morning with different dishes, then I can 'forget' about them until the evening! When it's time for everyone to eat, I can then just plug them all into a power board and put them on the table. This is a triple whammy saver for me! It saves time as I don't have to spend all day in the kitchen and can get other things ready for the party instead. It saves money as I can use cheaper cuts of meat to achieve tender dishes and - as I don't have to use serving dishes, it even saves on washing up!