Use hose nozzles that can be shut off when not in use. Sweep patios, walkways, driveways, etc. instead of spraying down with a hose. Wash automobiles with soap, water and a bucket. Use a hose with a shut-off nozzle for a quick final rinse. Or use a commercial car wash that recycles water.
Blades can shade each other and reduce evaporation.
Place a layer of mulch around trees and plants so more water can be retained. Use a pool cover to keep water clean and reduce evaporation. Catching rain water is another good option. Americans drink more than 1 billion glasses of tap water every day. One inch of rainfall over a one-acre lot produces over 2,400 gallons of water.