The Compact Flourescent Lightbulb (CFL)--you know, the swirly-doodley one--is perhaps the greatest invention since . . . well . . . the original light bulb. An eco win-win, CFLs not only consume up to 75% less energy than their incandescent siblings, but also last 10 times longer, while saving hundreds--yes, hundreds--on your electricity bill.
Fact: You save about $30 or more in electricity costs over each bulb's lifetime. The average U.S. household has 45 light bulbs; replacing that number of...
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