Turn off lights and unplug appliances when you aren't using them.
Replace outdated appliances with energy-efficient models.
Buy your electricity from low or zero pollution sources. Look for local companies that offer wind or solar-based electricity.
Lower your thermostat during the summer instead of blasting the air conditioner.
Insulate your house so you use less air and heat.
Wash your clothes with warm or cool water instead of using hot water.
Take short, warm showers instead of long hot ones.
Turn your water heater to 120 °F (49 °C) so that it never heats beyond that temperature.
Replace your light bulbs with energy efficient compact fluorescent bulbs.