Sustainabile living is fulfilling our needs without endangering the needs of future generations. Which means that we should aim to minimize the damage we make to our environment. Some clothes and dishwashing detergents have negative effects on the environment. Next time you shop for a detergent buy a environmently friendly one.
Have you tried soap nuts? They are a nut that actually grows with natural soap in them. They are used in renewing super fund sites and actually improve the quality of the soil.
http://en.wikipedia.org/wiki/Sapindus