Stella McCartney is well known in the eco-fashion world because she refuses to use leather, fur and even common vegan alternatives because they’re bad for the environment. She’s also talked about cleaning clothes saying she tries to avoid it. She developed the habit while studying tailoring where they would let the dirt dry and brush it off. She’s also not a van of dry cleaning anything. If you want to get in the habit of washing clothes less, designate clothes for specific uses, buy natural fabrics that don’t retain underarm odor and avoid impractical colors like white.