Turn off things that use electricity when nobody's using them

• Turning things off may seem a boring turn-off. But leaving lights, heating, air conditioning, computers, TVs and stuff on when you don't need them wastes a lot of energy. Turning them off saves money too!
• If it's warm in one room and cold in another, close the door. The door helps keep heat in.
• Leaving things on standby (like TVs, computers and stuff) also uses a surprising amount of energy. Newer models mostly use much less standby power but if you're away for a few days, it still makes sense to turn stuff off. This also lessens the risk of fire.

Keeping warm in winter
If you have a heated room of your own, you probably keep the door shut anyway, but it's also good to try to keep the doors shut in the rooms your family uses most. This keeps those rooms warm too because less of the heated air escapes into unused parts of the house or outside. Heating whole houses, or lots of rooms in a house, uses a lot of fuel and costs a lot of money.