The cost, both to the environment and your pocket book, of taking care of your clothes will astound you.
Without measurement there is no improvement.
Laundry is a BIG percentage of home energy use. How much energy (and money) can you save by greening your laundry practices?
Current Electricity Rate averages here.
US average July 2013 was 12.61 cents per kilowatt hour. Washing takes .375 kilowatt hours per load. Drying takes .23 kilowatt hours per load if electric powered. Drying takes .22 therms per load if gas powered.