We've been hearing great things lately about light-emitting diode (LED) bulbs and how they're a much greener choice than incandescent: They use less energy and don't emit as much heat or impact the environment as heavily once you discard them. As this recent New York Times article explains
, if you install one today, you may not even live long enough to see it burn out. But there's a reason for penny pinchers to rejoice, too: These bulbs are one of the simplest ways to cut your electricity bill. The average lifespan of an LED bulb is 50,000 hours (versus 1,200 hours for incandescent) and they use only six to eight watts (compared to 60 watts). The best part: it will cost you $33 to run an LED light for a year—and if you wanted the same amount of light from incandescent bulbs, you'd spend $329.