Another suggestion is to pack up those old desktops in favor of the more lightweight and energy-efficient laptops. They consume less than 1/3 of the energy with almost all of the benefits of a desktop.
3. Make the transition from an old tube-television to the newer LCD HDTV's. They use way less energy and some even come equipped with Energy Star standards. Plasma TV's have their benefits but they use up a lot of electricity. They are getting temptingly cheaper but they will soon be phased out by the LCD.
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Also, don't forget that refrigerators pose a real hazard to the environment when not disposed of properly. Take the time to take them to a proper recycling facility.
Also, try using a dehumidifier to help draw the moisture out of the air.
Purchase power-bars with timer settings on them. Plug your TV, Stereo, DVD player, Xbox, Wii, everything to it. So when the timer turns the power-bar off you'll be certain no juice is flowing into your expensive electronic equipment.