Unfortunately, I can't get much beyond the third step. The fourth step is all about climate control, and in Los Angeles I don't use a heater or an air conditioner at all, so it doesn't really apply. At the fifth step you get into replacing appliances, which, as a renter, I'm not about to do. But if I did own a home, I think I would just start working my way up this pyramid.
Via Treehugger