this is all absolutely true, but being me, I have one possible caviat. some things like T.V.s might just loose there memories when turned off, particularly older units. Most modern stuff should store chanels, favorites and the like in flash memory that requires no backup power, but I have seen equipment that lost its settings when unplugged and had no battery backup.
Not fatal but could be annoying Feel them wall warts, if they're warm when the device is off, you're making heat you may not want to pay for. Tom
