In most states, the local utility company will come to your house for free, inspect the house, and let you know the best ways to save energy and money. I just did this through Georgia Power (click here or call 1-800-524-2421). It was very helpful, and very non-partisan. Why do they do it? If you reduce or smooth out your energy demand, they can serve more customers better. So it’s saving money, and good PR.