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.

Keep glass showers sparkling clean for months at a time by using baby oil. First, clean the glass on the inside of the shower well, then dry off. Next, take a soft cloth and smear a small amount of baby oil. I stress a SMALL amount to ensure no oil runs down to the base of the shower, creating a potential hazard. Pay extra attention to wiping the edges and bottom of the glass. Once you have done this, the glass will look smeary and quite awful really - until you have the next shower! The hot water heats the oil and smooths it out on the glass. I have never had the problem of any oil running down onto the floor, even after heating it. You'll find a very small amount goes a very long way. Basically, the soap scum cannot attach itself to the glass, which stays clean and clear for at least three months at a time. By needing to re-apply the baby oil only every few months, this adds up to a huge saving in expensive bathroom cleaners!

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.

We had the chance to travel overseas several years ago but had to save $1000 to make it happen. On one income with two small children it seemed impossible. Then I had the brainwave - I didn't have to save $1000, I had to save $1.00 a thousand times! This was so much easier - a generic brand product at the grocery store, a chocolate bar at the petrol station and so on, soon added up and the savings contributed to a great family holiday.

I make these Cheesy Ham and Corn muffins, which are delicious and at only $0.44 each to make, give me and my family something tasty, cheap and healthy in our lunchboxes. They are yummy cold, or heated up in the microwave.

Makes 12

Ingredients:
1 x 310g can of corn (reserve can for measuring)
½ cup reduced fat milk (1/2 ‘can’)
2 eggs
2 cups of self raising flour - I use wholemeal (2 ‘cans’)
Pinch of salt
2 cups reduced fat grated Australian cheese (2 ‘cans’)
2 slices ham, cut into strips
2 teaspoons English mustard

Method:

Whisk together corn, milk and eggs in a large bowl until combined. Add remaining ingredients and stir until just combined.
Spoon mixture into non-stick ½ cup muffin tray.
Bake at 200c for 15-20 minutes or until golden brown and cooked through.

A few simple lifestyle changes have helped me lose 26.5kg AND slash my food bill by $35 a week! Over the past six months I have developed my own healthy eating and exercise regime. I began by pushing my one-year-old for an hour a day to the park and around the shops at a brisk pace, using our $20 eBay running pram. I also invested in some second hand hand weights and after extensive research on the Internet, I started my own regime of weight training exercises.

Food-wise, I began buying in bulk and made my own nutritious meals, rather than relying on 'ready to eat' microwave health meals. This way I knew exactly what was in each meal and there was never any waste. I started making my own meal plans and eating smaller portions, going from a 3000 calorie-a-day diet to 1500-1600 calories per day.

Under my new regime I soon began to lose the weight, but the real bonus for me has been in the savings I have made. Changing the way I ate and my portion size has resulted in me saving $35 a week over the past 26 weeks! A win-win situation all round. No personal trainers, fancy diet shakes, pills or supplements - I simply used what I had. I feel fantastic and have the energy levels of a teenager! If I can do it, anyone can!

This super basic mince recipe saves me up to $100 a month on takeaways, thanks to the convenience of having meals already 'half made'.

All you need are:
2kg minced beef
2 cups of red lentils
2 tbsp of vegetable stock powder, or four vegetable stock cubes
1 tsp dried garlic granules
1 dsp dried onion flakes
4 cups of water.

Place all the ingredients into a crockpot and cook on high for two hours, stirring every 30 minutes. It should be thick, aromatic and an unattractive brown colour (don't let this worry you!).

One batch costs just $13 to make and is enough to serve as a base for seven meals for our family (two children and two adults). This saves heaps of money and time too. I usually freeze the mince in margarine tubs, as that seems to be the right amount for one meal for our family.

The meals I made are:

1. Piemaker pies.
   Allow one heaped tablespoon of basic mince per pie. Pour the mince into a small saucepan and add a large spoonful of gravy powder, or a dessertspoon of cornflour and some Vegemite for colour. Heat and stir until thickened. Spoon into pastry cases and cook in the piemaker.

2. Mexican enchiladas.
   I use Mountain Bread or make my own crepes. Lay the bread or crepes in u-shapes in a large baking dish. Mix the mince with an equal amount of tinned or home-made refried beans. Spread the mixture in a sausage shape down the middle of each crepe, fold each side of the crepe over, sprinkle with grated cheese and bake at 180C until the cheese is melted and bubbly. Serve on a bed of rice, topped with natural yoghurt and some salsa.

3. Stuffed capsicums.
   Halve enough capsicums for half or one per person. Spoon the mince straight into the capsicums, top with some mashed potato, pumpkin or sweet potato. Sprinkle with cheese and bake for 40 mins at 180C. Kids love these as the capsicum sweetens when baked.

4. Baked spuds with topping.
   Allow one potato of appropriate size per person. Cook in the microwave according to manufacturer's instructions. Split a cross in the top and pile filling into the opening. Top with natural yoghurt or sour cream and chopped, sauteed bacon. Allow one large tablespoon of filling per potato. Mix the filling with one tin of baked beans and heat in a small saucepan before pouring on to the potatoes.

5. Spring rolls.
   Mix about four tablespoons of mince mixture with a packet of cooked and cooled Two Minute Noodles, some shredded carrot, and 1/2 teaspoon Chinese five spice. Using filo pastry sheets or spring roll wrappers, fold a small handful of filling into each spring roll. Spray liberally with cooking spray and bake at 180C for 20-30 mins.

6. Greek pasta bake (Pastito).
   Heat a container of mince mixture with a 400g tin of peeled tomatoes. Cook enough macaroni for your family and drain well. Mix with the meat mixture and spoon into a large baking dish and top with your favourite white sauce or cheese sauce. Sprinkle on some grated cheese and bake for 40 minutes at 200C.

7. Shepherds pie.
   Add any vegetables of your choice to the mince mixture. Place into a baking dish and top with mashed potato, pumpkin or sweet potato then bake until heated and the potato browns.

Here's how to lose weight and save!

A couple of years ago I joined Weight Watchers and went to four meetings. Joining was free from a coupon in a magazine but the meetings cost something like $15.95 each. I couldn't get motivated!

A few weeks ago, as I was bucketing the bath water into the toilet cistern to save water (a tip from Simple Savings), I realised that I am doing the exact same thing that Weight Watchers meetings could not motivate me to do. At WW the main things they encourage you to do are to eat 10% less at meals (this also helps the budget at shopping time) and to exercise more (this comes from carting water between the bath and the toilet and using the rain water tank to water the vegie patch and so on).

I am now losing about half a kilogram a week without even trying and I'm not paying $16 to do it. In fact, I'm making other savings as well - our last water bill was $40 less than that for the same time last year.

What has also happened for me in the last few months is that while saving money I have also become better at time management - planning meals for a month and shopping with a list have cut out a lot of unnecessary trips to the shops (not to mention the extra expense). I have cut $60 from my husband's spending money by supplying his lunch every day, along with some soft drink, a large bottle of water and a snack. He is happy because he still has a small amount of 'sanity money' in his pocket to splurge with every week.

My food budget absorbed this when I switched from a lot of brand name products to BI-LO brand products - I save from as little as $0.10c per item up to a couple of dollars per item. The biggest savings I make come from bulk buying - last month BI-LO had five kilograms of potatoes for $5.00, but when I went to the greengrocers they had them at $6.00 for a 20 kilo bag. These lasted for about a month and I couldn't bring myself to go to the fish and chip shop when I had 15 kilograms of 'free' potatoes in the pantry, so we had home-made wedges instead, saving another $6.00.

The excitement of saving money has also inspired me to do the things that I don't enjoy so much, such as mending and ironing, and I am gradually working my way through every room and cupboard, taking inventory of what can be used and how best to use it in a way that will save me money. I never thought I would actually look forward to going through years of accumulated junk! By organising my house, I am becoming a 'cleanie' and leaving the old 'messy' me behind - and I am enjoying every minute of it!

As a new singleton, I have learned not to let my pride stand in the way of making a new home for myself on a budget. I recently separated from my husband of 14 years and moved out of the family home. We share our four children week-about but I wanted to leave the family home as complete as I could for some sort of stability for the kids. With so little to now call my own I had no choice but to swallow my pride and 'put it out to the universe' that I needed quite a bit to furnish my new home.

At the op shop I purchased three Jason recliners, a telephone table, two tallboys, a desk, four bedside drawers, a single mattress and linen for the beds for $63, including delivery!

By word of mouth through friends I was given: a washing machine, microwave, crockery, glasses, towels, THREE TVs and a TV/stereo unit, a digital set top box, two stereos, a BBQ, a brand new gas bottle for the BBQ, a gorgeous white cast iron bed for my daughter, a queen size bed and three single beds, a computer, a bookshelf, a two seater couch, a bike and doonas for us all, as well as pillows. I gave away a few of the TVs and one of the stereos to people who needed it.

I also found that if you ask your friends if they have excess tea towels, coffee cups and so on, you'll find that they can often spare a few of these items.

Most importantly of all, I have learned that I don't need matching crockery or linen to make a home, just the basics and a lot of love!

I have read heaps about menu planning but found it all just so overwhelming. Choosing a menu for a whole month seemed like a lot of hard work but I have found a way to help even the most disorganised person.

Starting on the first day of a new month, and using a calendar or diary, write down what you have for dinner each night of the month. You will soon see what meals you eat on a regular basis. You can then transfer this information to the next month in your calendar or diary, and there is your monthly menu plan!