If you're in the market for a new television, don't just look at the purchase price. Look at the set that will cost you less to use in long run. If you're looking at size, Simran says a smaller set will always be more energy efficient.

If you're torn between a plasma and an LCD, you should know that a 32-inch LCD costs $34 a year in energy, whereas a 42-inch plasma will run you about $70 a year. "And an Energy Star TV is going to be about 30 percent more energy efficient," she says. Get plugged in!