Who didn't hear it from their dad turn off the lights when you leave the room.
Well, Dad may have been dead wrong about everything else (or so we'd like to think), but he was right about lights.
By now you've probably heard that lighting is responsible for about 11 percent of a home's energy bills. And you've probably heard that a compact fluorescent bulb uses about 75 percent less electricity than an incandescent.
No bulb saves energy like one that's turned off, however. So flip the switch. You don't have to tell Dad he was right.
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