Simran says lighting accounts for 11 percent of your energy bill, and there are now more money-saving bulbs on the market than ever. "The U.S. government passed legislation back in 2007 to phase out the incandescent bulb—the one we're traditionally used to using—because it's so inefficient," she says.

LED bulbs will be hitting shelves shortly at $40 each. Though expensive, Simran says they'll burn bright for 10 years! "They'll last 25 times longer than an incandescent traditional bulb," she says. "They will save you $740 over the life of the bulb." Which type of light bulb lasts 10 times longer than a regular bulb?


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