Steve Leslie's dorm room at Miami University in Oxford, Ohio, has 20 plugs sprouting from the walls. They power a color TV, stereo, compact disc and DVD players, video game player, desktop computer and laptop, printer, scanner, refrigerator, microwave, and two fans. Then there are rechargers for a cell phone, handheld computer, camera, electric razor, and toothbrush.

"I just keep adding stuff," said Leslie, 20, a junior who shares the room with another student. "I fill up my car and my dad's truck. Some of the bigger stuff, like the speakers, have to wait


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