Lok,
Hmm... switch off main switch for all points, like tv, even bedside lamps. Esp TV, dun put on standby cus its still "eating" electricity. Then washing machine switch also off most of the time. One period, what i did was to switch off the heater, only when we need to bathe then switch it on otherwise everytime we turn on the tap, the heater sure will go heat the water and hence our gas bill went up so much. Then aircon, turn the temp to 25degrees, apparently it helps to save some electricity. so everything at home is turned off except for the fridge ( can't be helped) then when C watches her dvd, we bought her the portable dvd player so we dun need to turn on the tv & dvd player.