Mistake #3: Under-Insulating
I hear from a lot of green-loving homeowners about their big plans: They talk about wind turbines, solar panels, geothermal wells, hybrid home appliances. While there's no reason not to dream of drilling 300 feet down in the front yard, it's just as important to make sure you have the basics covered, especially adequate insulation. Standards have changed over time, which means most homes don't have nearly enough. The right amount of insulation can lower your heating and cooling bills by 20 percent (not to mention it's easier and cheaper to install than your average wind turbine).