You may not believe in vampires, but you probably have a few lurking in your house. A "vampire" is any electronic device that draws power from electrical outlets even when it's switched to the "off" position. You can slay a few of these vampires by plugging your home entertainment and home office equipment into a power strip. When your gadgets are switched off, turn off the power strip to stop them from sucking more energy. When shopping for a power strip, look for one that includes a surge protector to shield sensitive components from damage during storms or power outages.