Depends what it is. Things like mobile chargers are more likely to be treated like this, you're going near the socket (and the switch) already, and it's relati

Depends what it is. Things like mobile chargers are more likely to be treated like this, you're going near the socket (and the switch) already, and it's relatively simple to flip the switch when disconnecting the phone. (Equally, plug sockets tend to be switched off when there's nothing plugged in, but that's irrelevant in the context of energy usage). Or electric cookers, there's usually a physical switch within close reach of the cooker itself. (Although arguably the power draw of an off cooker should be fairly minimal, even with a small LED/LCD display/timer/control panel, and resetting the clock time repeatedly is... quite annoying). For something like a TV, where the power socket may be hidden behind the TV and furniture, far less likely. (And obviously depends on the householder caring about it at all).