1. Run your dishwasher only with a full load. Use the energy-saving setting to dry the dishes. Don't use heat when drying.
Carbon dioxide reduction: 200 pounds a year.
2. Wash clothes in warm or cold water, not hot. Carbon dioxide reduction (for two loads a week): up to 500 pounds a year.
3. Turn down your water heater thermostat; 120 degrees is usually hot enough. Carbon dioxide reduction (for each 10- degree adjustment): 500 pounds a year.
4. Don't overheat or overcool rooms. Adjust your thermostat (lower in winter, higher in summer).
Carbon dioxide reduction (for each 2-degree adjustment): about 500 pounds a year.
5. Clean or replace air filters as recommended. Cleaning a dirty air conditioner filter can save 5% of the energy used. Carbon dioxide reduction: About 175 pounds a year.
6. Buy energy-efficient compact fluorescent bulbs for your most-used lights. Carbon dioxide reduction (by replacing one frequently used bulb): about 500 pounds a year.
7. Wrap your water heater in an insulating jacket (but only if the water heater is over 5 years old and has no internal insulation). Carbon dioxide reduction: Up to 1000 pounds a year.
8. Install low-flow shower heads to use less hot water. Carbon dioxide reduction: Up to 300 pounds a year.
9. Caulk and weather-strip around doors and windows to plug air leaks. Carbon dioxide reduction: Up to 1000 pounds a year.
10.  Whenever possible, walk, bike, carpool or use mass transit. Carbon dioxide reduction (for every gallon of gasoline you save): 20 pounds.