ROOF: Check the roof and around vents, skylights, and chimneys for leaks.
ATTIC: If there is no ridge vent, keep gable vents open year-round to ensure proper ventilation.
GUTTERS: Clean the gutters and drain pipes so leaves will not clog them and be sure they drain away from the house.
FILTERS: Remember to clean or replace filters once a month, or as needed. Check and clean the dryer vent, air conditioner, stove hood, and room fans. Keep heating and cooling vents clean and free from furniture and draperies.
SAFETY EQUIPMENT: Ensure that all smoke detectors, carbon monoxide detectors, and fire extinguishers are in good working order. Replace batteries in appropriate devices as needed, or at least twice year.
REFRIGERATOR: Make sure your refrigerator door seals are airtight. Test them by closing the door over a dollar bill. If you can pull the bill out easily, the latch may need to be adjusted or the seal may need to be replaced. In addition, if you have a coil-back refrigerator, vacuum the coils at least twice each year. Your refrigerator will run more efficiently with clean coils. Also, stock up! A full refrigerator uses less energy than an empty one.
WINDOWS AND DOORS: Seal drafty doors and windows. If you added up all of the small cracks where heating and cooling escapes from a home, it would be the same as having a window open. Replace seals as needed.
SIDING AND PAINT: Look for cracks and holes in house siding or paint. Replace caulk if necessary.
HEATING SYSTEM: Have the heating system serviced. Change filters.
HOT WATER HEATER: Drain the hot water heater. Remove sediment from the bottom of the tank.