Washing with cold water can reduce energy costs to 5 cents or less per load. Run full loads. Sort clothes into loads needing the same wash cycle. Reduce the water level setting for small loads. Clothes dryer Hang clothes outside when it's sunny.
Sunshine is free.
Clean the lint filter after every load. Be sure the vent hose isn't clogged. Run separate loads for fast and slow drying clothes. It knows when your clothes are dry better than the timer. Dishwasher Run full loads.