1、One possible version:

     There are many ways for us to reduce waste. We can do something in our daily life. For　example, we should turn the light off when we don't use It. We should also save water . When we go shopping we can take our own bags Instead of(using) plastic bags. We can also recycle some bottles and old newspapers/waste paper. We can reuse paper and plastic bags. We can also recycle newspapers to make new things. Many people write on only one side of" their paper. Why not try to use/using both sides?