Install skylights-preferably double-glazed skylights

Display window curtains with sheer or light fabric

Place trees in areas that won't block natural sunlight from filtering through windows and skylights.

When natural lighting isn't an option, here are some guidelines for indoor lighting.

Opt for compact fluorescent light bulbs

Turn off lights when you leave a room

Install task lighting, or a small lamp instead of using big overhead lights

When cooking on the stove, cover all pots and pans

Try using pressure cookers or solar box cookers

Unplug all appliances when not in use

For small dishes, use a toaster over instead of heating a full-size oven

Turn off and unplug your computer when it's not being used

Opt for a laptop instead of a desktop. Laptops only use 15 watts of electricity while a desktop uses around 130 watts.

Plug printers, fax machines, computers, lamps and more into a smart strip. Smart strips sense when a machine isn't in use and reduces energy flow.

Take a shower instead of a bath—showers use less water.

Ensure that you don't have leaks in toilets, bathtubs, showers, sinks and outdoor faucets.

Try and keep showers to 5 minutes

Purchase energy-efficient dishwashers and clothing washers

Use aerators on your faucets and install low-flow shower heads