I'll save energy if I keep my appliances turned off. Reality:
Yes, but not as much as you think.
Even if you're not using them, your DVR player, fax machine, a plugged-in but unhooked-up phone charger, and other energy vampires in the home keep sucking power.
The gadgets stand ready to record a TV show or receive a document, and that takes power. It seems negligible, but over the long haul it adds up. According to Lawrence Berkeley National Laboratory, 5% to 10% of residential electricity use can be attributed to standby power. -- E.F. NEXT: Energy: Jet fuel