Our local utility company, Cedar Falls Utilities, offers wind power for those who wish to use it. So, in an effort to be more green, I dug through the last year's energy bills, figured out our average monthly usage, and purchased enough wind energy to cover it. My wife ordered a Kill A Watt power meter, so we can figure out which devices in our house are using the most energy and replace them or reduce our usage of them. Is it more expensive? Sure, but it reduces the amount of pollution we're personally responsible for, encourages more development of clean energy alternatives (I'm a big fan of nuclear energy, too bad no one else is), and gives us more incentive to reduce our power use at home.