School holidays are more affordable with the help of the $21 Challenge! Money seems to slip away so effortlessly while out having fun with my teenage kids. Budgeting is something I am trying to teach them about but it is hard to make it relevant sometimes. Then I had a great idea that would make them pro-active with the weekly budget over the holidays, without me being a 'budget nag'.

It is the $21 Challenge week, with a twist. THEY have to go and log all the food in the freezer and pantry, and make up the meal plan for the week. Then all the money THEY save us for the week can go towards some guilt-free fun. It's a great incentive and my kids are learning important household skills.

I have two daughters who live at home with me who are both university students. They both work part-time and pay me $50 a week each for everything. (And I mean absolutely everything!) I had begun to get sick and tired of their wasteful habits! I would find half eaten muesli bars lying around, week-old uneaten fruit, discarded shampoo bottles and toothpaste tubes with enough in the base for three or four more uses, soap in the bin which still had plenty of use left in it and the list goes on! Quite frankly, I'd had enough! I told them to keep their $50 a week and instead they could buy everything for themselves (snacks, lunches, toiletries and so on). I would provide their one evening meal and that was it. I even made them buy their own toilet paper. Well after two weeks they have decided to mend their ways! They just did not realise the costs involved in running a household and admitted they had taken things for granted. I only wish I had done it much sooner, for their benefit and also mine! One daughter can only afford to give me $50 still and her older sister has increased her amount to $70. However, I think things around here are going to be very different from now on as my Sad Sallys strive to become more like Happy Hanna!

I have decided I want a house which I can clean in minutes and I don't want any more energy or money draining clutter that makes it harder to control. The more I have the harder it is to control and the more motivation I need to contain it. 'Less is more' is my new mantra! I am applying this principle to my finances as well - when I buy too much it is such a burden and I don't have the motivation to stay on top of all the bills. Therefore, less is more - more energy, more money and more happiness!

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.

For a great-tasting, quick, healthy and inexpensive breakfast, make your own egg McMuffins.

Fry six eggs, using egg rings, (if you don't have any, check your local discount store), fry bacon if you wish, and toast your muffins. Once all ingredients are cooked, assemble egg McMuffins, including sliced cheese and bacon if you like.

Once assembled, wrap each muffin in alfoil and freeze. In the morning, simply take the muffin from the freezer and cook in a moderate oven for 20 minutes. For an even quicker breakfast, unwrap from alfoil and wrap in paper-towel. Place in microwave for at least one minute, depending on microwave.

My kids love these for breakfast, and they only cost around $0.60c each!

I buy Home Brand English Muffins which are around $1.60.

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!

Instead of adding up when you do your shopping, why not deduct? This hint explains all.

I no longer use a calculator when I do my grocery shopping. Something to do with always pressing the wrong button and clearing my calculations!

Now, I simply write how much I can spend on my shopping list and when I put something in my shopping cart, I subtract a rounded amount from the total. For example, if I have $100 to spend and I buy milk for $3.89, I subtract $4.00, leaving me a total of $96 to spend on the rest of my groceries.

By making these deductions with every item, you always know how much you have left to spend. Makes it easier to budget and certainly beats using a calculator!

I have finally convinced my three daughters that eating a healthy lunch, including sandwiches with salad, is not only good for them but tastes great too. However, soon after changing their lunch habits, I found that this method was taking a large chunk out of our budget.

Being a working mum, it was easier to stop at the supermarket on the way home and buy pre-packed salad ingredients, but I soon discovered it was adding around $55 to the weekly budget. Plus, buying cold meat to match everyone's tastes added another $40 per week. I decided it was time to cut down. After doing some homework looking for the best prices and quality, I now purchase a bag of carrots, a couple of fresh beetroot, some fresh bean sprouts and cucumbers and a variety of lettuce. I noticed that by purchasing these items late on Sunday afternoon, I can pick them up even cheaper.

I grate my own carrot, beetroot and cucumber, throw in the bean sprouts and store in the fridge in an airtight container. I tear up the lettuce leaves and mix together in a plastic shopping bag and store in the vegetable crisper where they stay fresh and crunchy all week. My salad ingredients now cost less than $10 per week and they last longer. Throw in a small portion of sundried tomatoes for my hubby and I add approx another $1.50 to my total.

Instead of buying cold meat from the supermarket deli, I now purchase a couple of extra chicken breast fillets from my Asian butchery for around $4.00; this is cheaper than ALDI or any other local fresh meat source. I cook and shred the chicken myself while tinned salmon and tuna add extra variety; a $0.69c tin of tuna covers two lunches when added to salad. I purchase mince when it is on special and make a large batch of meatballs, which are frozen and used over a period of weeks as another filling alternative. Another favourite is home cooked corn beef; rather than putting the leftovers in the fridge, I slice it thinly and freeze for another filling choice.

My three girls are now involved in the Sunday afternoon preparations. Whilst my eldest daughter is madly grating the salad items, I tear up the lettuce and my younger daughters have great fun mixing the meatball ingredients and rolling them ready to cook.

Our family of five is still eating yummy healthy lunches but for $70 to $75 a week less than before!
We also have the added bonus of spending time together while we prepare and my daughters are learning new skills too.

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!

Making our own cleaners has saved us a fortune over the years and we have saved the environment a little too. '1001 Greener Household Hints' by John Schluter is full of simple household cleaning ideas and we went straight out and bought some five litre bottles, spray bottles and some of the suggested basic cleaning ingredients. The following instructions are from the book:

Air freshener: Mix one teaspoon of bicarbonate of soda with one tablespoon of white vinegar. Add two cups of water. Store the mixture in a pump spray bottle. Add scented oils for fragrance.

Spray and wipe cleaner: Mix two tablespoons of cloudy ammonia, a half cup of white vinegar, two tablespoons of washing-up detergent and four litres of warm water. We stored this in large labelled bottles and used in spray bottles as needed.

Bathroom disinfectant liquid: Dissolve 12 drops of eucalyptus oil in 1ml of methylated spirits and then add eight cups of warm water. We used this in spray bottles also.

We paid $5.00 for the book but have saved hundreds in the years since we began making our own cleaning products.