Using parchment paper to bake the cookies is easy, safe (and food-grade!), and is my favorite cookie-baking trick.
Parchment paper allows you to be more precise in baking cookies, because you can remove them all from the pan at the same moment. Plus, you can make more cookies faster, which is never a bad thing.
A note: Some people use brown paper, but parchment has a longer life, so I prefer it over paper.