Well, it's important to remember that you don't have to be an expert to switch light bulbs, peek at the insulation in the attic, or use a caulking gun. Those things can save money. But for the person who wants to learn more ways to save, there are lots of resources that make learning easy. So, here's a terrific tool from the US Department of Energy. Complete with crisp graphics and loaded with easy (and fun) to navigate information, this tool lets you look at every appliance and in every room of your house. It even lets you explore things like the house's thermal boundary, the a/c unit and furnace, door sweeps and leaf blowers. It's very attractively packaged and lets you click-through to other resources as much or as little as you want.
Loaded with information and easy on the eyes, this is a great place to start when thinking about ways to save money at home.