#1. Put your lights on a timer if you leave town.

#2. If your appliances have an energy-saving feature, use it.

#3. Ceiling fans are a cool way to stay cool and extend the life of your AC.

#4. By turning the lights off, even for a second, you can save electricity.

#5. Close your blinds to keep the sun out if you want to stay cool.

#6. Keep lights off in unused rooms.

#7. Wait until the dishwasher is full to run it.

#8. Keep a fan in your attic to keep the hot air out.

#9. Experts state that dark colors increase cooling costs by 20%, so lighten up the exterior of your house.

#10. Wait until you have a full load of laundry to run the washer/dryer.

#11. Before using the dryer, clean the lint filter to improve the air circulation.

#12. Tend to any windows and/or doors that leak air, especially during the winter.

#13. Experts say poorly insulated attics can lose up to 40% of the cool air in a house.

#14. Hand-wash your dishes if you only have a few to clean.

#15. Dimmer switches help you control the amount of light you are using.

#16. Laptops use less energy than desktop computers.

#17. Plant a tree near a window for shading.

#18. Utilize natural light as much as you can.

#19. Turn the AC off when you're not using it. It is not cheaper to leave it running all day.

#20. If your AC is old, replace it. It will save you money in the long run.

#21. Clean or replace the furnace filter every month when in use.

#22. Clean or replace the air conditioning filter every month when in use.

#23. Use energy-efficient compact fluorescent bulbs. They use 75% less electricity.

#24. Replace old refrigerators. A 1980s-era refrigerator will cost up to 75% more to operate.

#25. Save 10% or more on your summer cooling costs by setting the thermostat to 76° F when at home.

#26. Save on hot water because it takes power to heat it. Cutting back by 2 minutes per shower can save you $383/year.

#27. Turning your computer off at night will save about 25% of its annual energy bill.

#28. Keep your light fixtures clean. Dirt can absorb as much as half of the light given off by fixtures.

#29. Use a fan to draw hot air out of your kitchen when cooking.

#30. If windows need replacing, consider energy-efficient windows, which can cut energy loss by 50% or more.