You can get subsidized surge protectors on the ri Energy website that auto switch off once the master device is off. So for instance when the computer is off all the other things like external harddrives, printer, monitors are cut from the power supply. Or tv, the Bluray, game systems (which use a lot when off), speakers whatever get cut from power. The have some slots for always on too for things like the router that you don't want turning on and off.