When doing laundry, match the water level to the size of the load.
Washing dark clothes in cold water saves water and energy, and helps your clothes retain their color.
When shopping for a new washing machine, compare resource savings among Energy Star models. Some can save up to 20 gallons of water per load.
Have a plumber re-route your greywater to trees and plants rather than the sewer line. Check with your city and county for codes.
When buying a washer, check the Consortium for Energy Efficiency website to compare water use between models.