We are lucky to live in a rich country where we have many things. However, most of us usually (waste) some things.
Electricity is one thing that we waste most. Lights, TVs, (radio) and other things are often kept on even when no one is using them. We should turn them off we do not need them. It takes (little) than a second to do it. Anyhow, not wasting electricity saves money, because we do not have to pay for the electricity we do not use. The (two) thing that we often waste is water. Fresh water is precious, so it shouldn't be wasted. It is only a simple matter of turning a tap. I am sure everybody can do this (easy) if he wants to. Another big waste is food. My mother used to cook so much food that much of it was thrown away. I told her we had wasted so much (food). She thought I was right and now cooks mainly what we can eat.
It is not right to be wasteful. I find there is a simple way of not wasting things. That is (use) only what we need. Do not touch what we do not need. this way, we can stop being wasteful.