Every one wants to cut down on their power bills but they do not know where to start. Following simple tips would help a person to cut down her power bills by at least 40 percent. Lights and air-conditioners must be switched off whenever you leave the room. The Television set must be switched off properly and not with the remote unit. The refrigerator in the kitchen should not be opened and shut unnecessarily. This would waste cool air and the compressor would have to run to keep the interiors cool. Cooking must be carefully planned so that you take out all the necessary groceries at one go. Hot water should be used sparingly and you should make do with cold water wherever possible. Taking shorter showers would save water and also cut down on your power bill. The computer should be switched off completely if you are not going to work on it for another 15 minutes.