Dishwasher: If mineral deposits are building up inside your dishwasher, place a small container with one cup of vinegar in each rack. Doing this once a month will help dissolve existing deposits and prevent future build-up.

Refrigerator: Vacuum the condenser coils regularly to remove dust and debris. Once a year is the minimum; if you have pets, two or three cleanings a year will help keep it running efficiently. Coils will be in the back on older models, underneath on newer models.

Stove: Clean your oven and range burners often. Baked-on messes can increase energy use and shorten the life of the heating element.

Washer/Dryer: Make sure the outside dryer vent is clear, and don't let snow cover it during the winter.