What precautions should be taken to avoid the overloading of domestic electric circuits? ( CBSE 2010)

The following precautions should be taken to avoid the overloading of domestic electric circuits:

a) Too many high power rating electrical appliances (such as electric iron, geyser, air conditioner etc.) should not be switched on at the same time when used.

b) Too many electrical appliances should not be operated on a single socket.