Did you know that, next to heating and air conditioning, your lights consume most of the energy in your home? In fact, you can lower your electricity bill quickly – and substantially – simply by being smarter about lighting.

First, consider replacing your conventional light bulbs with the energy-saving variety. You've probably seen these at your local home improvement centre. Compact florescent light bulbs, for example, use up to 75% less energy.

Second, lower the wattage in some outlets. Is it necessary to have a 100 watt bulb in the furnace room? Try a 60 watt bulb.

Finally, think before you turn on the lights. Do you really need them on? Perhaps there's an alternative, such as opening a window blind to let in more sunlight.