Caulk gaps and cracks around drafty doorframes and windows to prevent cold air from entering your home. Caulk is inexpensive and can be purchased at most hardware stores, where you can also learn how to apply it.
Wrap older water heaters with an insulating jacket or blanket to minimize excess heat loss. Remember to leave the air intake vent uncovered.
Air seal and properly insulate attics, walls, floors over crawl spaces and accessible basement rim joists. Doing so may result in a savings of up to 10 percent of your total energy costs.
