GOOD Magazine has a great graphic showing how you can reduce your water footprint in your daily life. Pore over this for a while, but the quick takehome message is eat less beef. At 1,500 gal of water needed to produce a pound of beef, chicken for your meat eating needs is the way to go. And small change compared to the dish washing, but wash your dishes in a dishwasher if you have one. 1/5 the water use than hand washing.