Tip #10 Turn off the lights
Turn your lights off when you leave a room.
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Standard, incandescent light bulbs should be turned off whenever they are not needed.
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Fluorescent lights should be turned off whenever you'll be away for 15 minutes or more.
Fact: Compact fluorescent light bulbs use only one-fourth the energy and last up to 10 times longer than incandescent light bulbs.
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