What are some ways to Go Green and conserve energy?

I, like my girl Fae, am writing a persuasive speech for English cl. I am a Go Green girl all the way! But I need some more examples on how, and reasons why, the cl should Go Green and conserve energy. I would greatly appreciate it if you guys could help me out. And if you could, look for Fae's question, "Why is it important to read books?" It would help her out a lot too.