Reduce, reuse, and recycle. Some ways you can reuse items to reduce waste are to bring your lunch in a lunch box instead of a paper bag, use both sides of each sheet of paper, buy products in bulk, bring your old grocery bags to the store when you shop and give away old toys and clothes. Encouraging your family and school to recycle cans, bottles, papers and plastics is also an excellent way to conserve energy and natural resources.