As a new member, I have saved $150 in my first week, thanks to the $21 Challenge! I thought I was careful with money until I discovered this site and realised how I could further improve my spending habits. I decided to give the $21 Challenge a go and it is now Thursday and I haven't been to the shops yet!

I have become a problem solver due to the fact that I must use what is in the fridge/freezer and pantry. I nearly buckled when my four year old wanted 'pink milk' and I had run out of Nestle Quick but no problem in the end. I found some rose pink food colouring and with just one drop - presto, pink milk! It does take some preparation because you are cooking from scratch but it is all worth it when your family tells you that the dinner you made tonight was the best, and is there any more?

My other dilemma was to use the three zucchinis in the crisper, so I made them into a slice. It was so easy to make and I had every ingredient on hand without even trying!

Zucchini Slice (serves 4-6)

3 zucchini (grated)
1 onion (grated)
1 potato (grated)
4 slices of ham/bacon (chopped)
1 cup of cheese (grated)
6 tablespoons flour (plain)
3 eggs
salt/pepper

Put all ingredients into a big bowl and mix really well. Pour into a quiche dish and cook in the oven for one hour at 160C. If you are vegetarian, simply leave out the ham. Simple, delicious and super cheap!

I add a supermarket gift card to my weekly grocery list and use them all up to shop for Christmas! After doing some calculations I realised that the ready-made Christmas hampers that you pay for weekly cost three times their actual value, not to mention the fact that they can include many products you won't ever use. My new system for buying Christmas groceries lets me buy my own hamper full of items at the current price or on special.

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.

Here's how we saved $3160 on our food and grocery shopping in one year!

With two kids, it's difficult to find time to shop every week, so I now plan a month's meals in advance and do one big shop each month for basics and weekly shops for fruit, vegetables and meat.

We used to spend $150 a week ($7800 a year) shopping, then find we were throwing away fruit and vegetables because they had gone bad, and that we never had enough ingredients in the house for a full meal. We now spend a total of $170 a month grocery shopping, and $50 a week on fruit, vegetables and meat, if that. This equates to a yearly total of $4640 - a saving of at least $3160!

Planning the month's menu takes a maximum of 20 minutes, and each week we have two fish meals, two meat meals and three vegetarian. Recipes come from 'The Destitute Gourmet Cookbook', the Safeway magazine, magazines from the library and from friends. Each week has a mix of easy/quick recipes and more involved ones so that if I have a busy day, I can make something quick. I also plan the 'snacks' such as oat cake, date loaf and banana muffins.

I have a spreadsheet on the computer which helps me to plan how much pasta, rice, tinned tomatoes, and so on I need (four kilograms of rice, five packets of pasta, and so on).

After planning the menu, I write the shopping list and then hit NQR, Safeway and Coles while my husband looks after the kids. It takes only an hour if you're organised with a list and go at a quiet time of day! I prepare separate lists for the weekly fruit, vegetable and meat needs.

We are all now eating in a healthy way and always have cakes and biscuits on hand for guests - and we always use what we have before it goes off.

Other advantages are that other people can consult the menu to see what to cook if I'm not around. Because I'm only doing one big shop, I'm not buying as many impulse items - especially since the husband and kids stay at home! We're also finding that we have enough leftovers from one meal to last another, even after using some for lunches.
And we don't live on baked beans! Tonight we feasted on vegetarian sushi with pickled ginger and Asian dips. Last night was a Moroccan chicken casserole with couscous. Tomorrow night may be a tuna curry, home-made vegetable pizza or grilled balsamic lamb salad!

Doing this, we're saving more than $3000 a year for the family - and don't have the stress of shopping each week with two active children!

I was usually a pretty prudent shopper but was always looking at the money I saved as potential cash for more purchases. This meant that in the long run I didn't really save anything and ended up with a heap of things I didn't really need.

I started taking a 'savings purse' with me to the supermarket when I did my grocery shopping. Instead of buying the product I would normally have bought, I would choose the cheaper alternative. For example, I would purchase the 'home brand' biscuits for $1.00 less. That $1.00 would go into my head as a saving. At the end of that shopping trip I would put any 'savings' into the savings purse. I was stunned. After two weeks of shopping and 'saving' this way, my savings purse contained $100.

I began to use my savings purse in other ways. If I managed to refuel my car with cheaper fuel, I would put the difference in the purse. If I wanted a chocolate bar, and I resisted buying it, I would put that money in my savings purse. Even with those small amounts, the savings became huge. Doing this began to be fun; it was a challenge to find extra ways to put money into my savings purse!

To top it all off, not only was I saving money but, by 'resisting' the sweets and chips so that I could put the money into my purse, I was also eating healthier and losing weight. I am so happy with the results.

My husband is self-employed and over Christmas and New Year we were waiting on a payment that had been due in November. I had not done any shopping for over a month, and we felt like there was nothing in our pantry, especially my five kids who repeatedly moaned ' there's nothing in here!’

Of course, that wasn't the case. It's amazing what you have stashed away in containers or hiding at the back of each shelf. On a closer inspection, we found dried beans and lentils, flour, sugar, cous cous, rice and lots of other bits and pieces.

We managed to feed our family of seven on the 'nothing' in our pantry for another two weeks. We are lucky enough to keep chickens, and have a very basic vegetable garden, so all I really needed to purchase was milk. We made pancakes, pikelets and scones, and even a chocolate cake with the cocoa we found - these snacks kept the kids, and hubby, very happy!

We survived until our very overdue payment finally arrived. We have now decided that we will eat the cupboard clean every month, as this encourages us to save money by using what we already have and by not allowing things to go out of date.

Our wonderful daughter is a saver on the grandest scale. At 29 years old and earning a modest wage, she is building her first mortgage free home on five acres; as well as flying out to Bali for a holiday! She has had several serious health problems but is amazing in her efforts to follow her plan, thanks to the support of her equally admirable husband. Their two horses and two dogs are greatly loved and their lifestyle is totally free of unnecessary expenditure. They own their block of land, furniture and vehicles as they need them to drive to work.

To save rent while rebuilding they bought a duplex then removed junk, scrubbed, painted and renovated by finding the best way to build fences, roof a pergola and fix the faults. Meanwhile they have fenced their own block of land, installed gates, had a bore sunk, built open stables themselves with salvaged material and negotiated the big expenses of shed, driveway and site costs.

They are not without experience as she purchased her first property at 19, a unit which she and her father gutted and renovated. Her husband joined in and renovated a property, then they renovated a joint property before they purchased five acres, built a house and developed it for resale so that they could buy their current land. Recycling has included rescuing old baths for horse water troughs, finding a kitchen sink for a fish cleaning bench and rebuilding an old horse float. They planted and watered tube stock trees, had family members grow cuttings and even used the horses to mow the lawns. In fact one horse was purchased for the knacker's fee and the other was free.

No, she hasn't benefitted from a first home buyer's grant as she was too young at the time of her first unit, or from family gifts. Just planning, following her dream and sticking to the budget. It works!

I am putting an end to my bad habits for good! I decided to give up one bad habit a month this year - something that costs me money and is not good for me. At the end of each month, I can reward myself have that thing again but I find after not having it for a month I no longer crave them any more!

For January I gave up chocolate. It was hard at first and each time I wanted a chocolate I had to deny my cravings. I also made sure that I did something positive, such as going for a walk until the craving passed. I also made sure that I didn't buy something more expensive to replace what I was giving up. The idea is to save money and look after my health.

When February came I allowed myself chocolate again but found I didn't want it any more! For this month I have given up fruit juice. I am finding that I actually enjoy drinking water and if I need more flavour I just squeeze some fresh juice into it.

In March I plan to stop catching the bus. Instead I am going to walk the 40 minute trip to and from work each day. Although it will take an extra 20 minutes of my time each trip, I will get 40 minutes of exercise for a cost of 20 minutes. Again I hope to continue this indefinitely.

In April I will give up alcohol. When I am out I will order a soft drink or lemon, lime and bitters, which will save me money and be good for me.

Each month I plan to give up something that is small but costly and not so good for my health. By the end of the year I should end up with a lot more money in my pocket and be far healthier too!

My husband and I are soon to become parents and our income has been cut in half. Now that we're on a tighter budget, I have realised how much we were caving in to outside financial influence from friends and family. From innocent dinner invitations to suggestions on 'must-have' products for the new baby, the dollars were being seduced right out of our pockets. At the same time, it quickly became uncomfortable saying 'We'd love to, but it's not in our budget' in almost every conversation. It made me feel constantly deprived and I would actually end up spending money to make myself feel better. My husband stopped wanting to talk about our finances at all because he felt stressed out.

After thinking long and hard about our spending habits, I decided there were three main ways that outside influences were sabotaging our budget: social invitations, gift giving, and pressure to buy. Once I specifically identified these influences, it became so much easier to combat them.

Instead of declining every dinner invitation, and feeling bad about constantly telling our friends we didn't have the money, we organised a monthly dinner party for the entire group. We rotate hosting duties, and guests just bring a bottle of wine. Instead of eating out once a week with one or two friends, we now have a festive gathering once a month with everyone all at once - but only pay for a home-cooked dinner a couple times a year! It puts us back in control of how much we spend. I've also realised that people essentially just want to spend time with you, so you can feel free to counter suggest a cheaper and more creative option than going out to dinner. Instead of 'it's not in our budget', I now say 'Would you be up for a picnic on the beach instead? The weather is supposed to be beautiful'. If the plans are set in stone, I say 'We already have a commitment for dinner, but can we meet up with you all for a drink afterwards?'

I also noticed that giving gifts was really adding up. It was so simple to start making my own gifts instead. My favourite is to make chocolate covered strawberries and wrap them up in a beautiful gift box.

To stop caving in to pressure to buy, I've had to change the way I go shopping. It used to be a leisure activity to go with friends on the weekends, but I know I am too easy to influence. It's just inevitable that they will say 'You look great in that, you should buy it', or 'I had this with my first baby, you definitely need it'. Now I shop alone, with a list! I've also stopped taking the bait in conversations. If someone is recommending a $700 mountain buggy stroller, I ask if they know of a more economical brand of similar quality.

The most important way I've stopped outside influence from wrecking our budget is to talk openly about things with friends and family. Through this I've learned that most people are in the same situation. A friend confided that she was deeply in credit card debt and didn't know what she was going to do. Now instead of meeting her for a weekly manicure and lunch date that costs at least $60, we have opened up and become a real support system to each other for reaching our financial goals. It's often perceived as taboo to talk about money with people, but I think our friends have been just as relieved as we are!