I only need to shop for food once a month and am saving $3000 per year on feeding our family of six.

With four children, I was spending at least $800 per month on shopping, so I came up with a plan to try and cut costs. I went through recipe books and chose meals that I was going to cook for dinner. I wrote a list on an A4 page for every day of that month and what I was going to cook for each day. Then, on another page I wrote all the food items that I needed for the recipes I had pre-chosen and that was my shopping list for the month.

The best thing is I now knew what I was cooking every day, without walking to the fridge and thinking 'what am I cooking?' I also put the A4 page of what we were having for dinner on the fridge and the family knew what we were having each day without asking me!

To start with I went shopping every fortnight for food, but now I do it once a month and only spend $550 each month.

Before I began this routine, I was spending $9600 per year on food for four children and two adults - now I am spending $6600 per year! The extra $3000 we save each year goes into our children's bank account, which they just love!

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!

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.

For a super, low-cost, personal and heartfelt gift, why not give someone a Happy Bag? All you need is a plastic 'loot bag' such as those given away at children's birthday parties, and fill with the following:

*An eraser - so that you can make your mistakes disappear.

*Five cents - so you can never say that you're broke.

*A marble - in case someone says you've lost yours.

*A rubber band - to stretch yourself beyond your limits.

*A piece of string - to tie yourself together when things fall apart.

*A bear hug (cut out teddy bear picture or motif) - to remind you that someone cares.

I make this vegetable pasta sauce for three reasons - it's cheap and healthy and it uses up leftover vegies (cooked and uncooked) so I save three times!

Whenever I serve up a dish of vegies for dinner (usually broccoli, carrots, beans and zucchini in my house) and it isn't all eaten, I put the leftovers in a ziplock bag and throw it in the freezer. Then, when my fresh vegies are starting to get to that 'oh dear' stage, I start cooking!

In a big pot, with a bit of olive oil, I fry onion and garlic and add all the 'oh dear' vegies - sometimes there is a fiddly bit of broccoli that is too small to use in a meal or carrots that are starting to wilt. Other vegies I have added include celery, cauliflower, broad beans, spinach, cabbage and capsicum. I chop and cook all of this - in summer I add fresh tomatoes, in winter I throw in a couple of cans of Home Brand tinned tomatoes. To this I add the frozen leftover vegies, a squeezie stock concentrate or stock cube and some water.

I cook the whole lot until everything is soft, and then I blitz it in a food processor or with a Bamix until it looks like pasta sauce. I then freeze this in meal-size portions and use it for everything - I add it to mince for bolognese, or just use it neat. My kids don't know it's full of vegies - they just think it's another jar of commercial pasta sauce!

I am a busy mum of two and my home manual helps my husband and I run our home efficiently, saving money and buying us both precious time to do things for ourselves.
The first section outlines the weekly and daily routines. The daily routine buys me 30 minutes to myself to exercise which makes me feel better throughout the day. My husband can also see when things get done, so he knows what to do if he is letting me have a sleep.
I let the girls watch TV until 9am so that I can complete a chore (clean the bathroom, dusting etc) each day. This helps me keep the house clean and tidy, and then I have the rest of the day to play with my children.
The next section covers dinners for the month. I have a weekly list of which dinners we will have and where to find the recipes for them. This saves time deciding what to have plus hubby or anyone who comes to stay can cook too.
The next section is shopping and supplies. I write all the ingredients needed for the month so I know exactly what I need. I keep catalogues in this section so when it’s shopping time I know where to get the specials.
I also asked for a floor layout plan of my supermarket so I don't need to walk down the aisles I don't need anything from. This saves time (especially when shopping with two young children) and money as I am not tempted by things in those aisles.
I also have a maintenance section with dates when items need maintenance done on them, eg. an oil change for the car. This means everything can be budgeted for and planned and it also helps prevent unexpected expenses, like changing gas bottles.
There is also a budget section of the manual which contains the monthly, weekly and annual budgets in it. We write down everything we spend in this section, so we can see where the extra dollars are spent!
Finally, I have an important numbers section such as insurance companies, medical centre etc so that everyone (including people who are staying) can get to them easily.
The manual doesn't always bring dollar savings, but its our way of making sure we don't waste time doing everyday household things so we maximise our family and down time.

After reading every newsletter on this fantastic website, I decided to make changes to our household budget.

I started by rummaging through the cupboard, where I found an insulated plunger coffee mug that my husband and daughter had given me as a gift. The mug had never been used as I found it easier to grab a 'latte to go' on the way to work. I bought a tin of ground coffee beans for $6.65, figuring that this tin, with its plastic lid, could be refilled. I now keep this tin in the fridge at work. So, instead of buying three lattes a week at $3.50 each, I now allow myself one a week or sometimes just one a fortnight.

While buying my latte I would sometimes purchase an English muffin with bacon and egg. I now have muffins in the freezer, bacon rashers trimmed and have perfected the three minute poached egg. The bacon takes one minute in the microwave and the muffin is toasted in no time. If I am in a hurry, I wrap the bacon and egg muffin in a small piece of alfoil and take this to work. So instead of paying $14 per week, or $672 per year, I now buy the ingredients for the equivalent of $1.45 per week, saving just over $600 per year. Wow!

You have no idea of how proud I feel. I have saved so much money and it's thanks to your wonderful site.

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!

Changing circumstances and a growing familly all added up to us paying a whole lot less off our mortgage than we would have liked. Pretty soon we would have started to go backwards. It was crunch time!

Using the Simple Savings calendar I identified our most expensive habits, and was astounded to see the amount of money that could have been saved. Our grocery bill was always around $200 or more per week. This amount did not include meat or bread that we get from the butchers and bakery.The trouble was, my husband loved all the expensive name brands for items such as chocolate biscuits, lollies and savoury snacks and was convinced that the cheaper or no name products would be tastless and boring. Week after week I would just automatically reach for these items, without even glancing at the alternatives. I knew as soon as my husband saw the packaging, the goods would remain in the pantry unopened, and he would then go and buy the brand name items anyway.

One week I kept mentioning to him that I was going to do a big clean up of the pantry and I was finally going to utilise all those assorted Tuppaware containers that I had never used. That week I substituted his expensive brand of snack foods with cheaper versions, emptied them into the assorted airtight containers and threw the plain packaging out before he could see them!

I also applied this technique to several other items; I would fill cheaper dishwashing liquid into Morning Fresh bottles, no-name hand wash into saved Palmolive dispensers, you get the picture. Our grocery bill went down from $200 to $140 per week - a saving of $240 a month!

When I finally fessed up to what I had been doing, my husband admitted that most of the snacks were just as good as the name brands, you just have to try a few out. All it took was some creative (OK, and somewhat deceitful) way to present the changes, but we have never looked back. Why would we, with a saving of $3120 a year? Plus of course, one very neat pantry!

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.