Shut off the things when not in use. Stop using computers for chatting, playing games, listening music with high power sound boosters or speakers. Some of the above mentioned are necessary, however they can be done happily at the less expense of electricity and probably results in an equal pleasure.
I stay in the hostel of IIT Bombay, here electricity never goes off, rightly so. But students are using it in very incorrect manner. They keep their computers on stand by when not in use instead of shutting it down, people here keep fans and sometimes tube lights on when they are not in the room. People use high power sound boosters and speaker, they watch movies on computers almost every night, consuming huge amount of electricity.
(courtesy: TOI and Rupesh)