You can conserve energy by keeping the coils on your refrigerator clean. Clean the outside of your refrigerator with a mild solution of ammonia and water. You can slow the buildup of dust on the surface by applying furniture polish. Clean the exterior of your stove with soap and water. Clean the interior with an oven cleaner.
Television screens generate a lot of static electricity, which attracts dust.
Canned air is also good for cleaning stereo components and other electronics.