Waste minimisation is when you try to reduce the amount of stuff that is thrown away. We do this by buying less things, using things more than once, and recycling or reusing items instead of throwing them away. For example, if you have an empty plastic bottle, you can fill it with water and use it again. Or if you have an old shirt that you don't wear, you can give it to a friend or donate it to charity. By doing these things, you can help minimise the amount of waste we put in landfills.