Never hose your sidewalks and driveways. This is a complete waste of water, and a hose can use 25 gallons in just five minutes. Remember: A broom is best.
Check for leaks! Note the number of outdoor faucets on the outsides of buildings. Make a list and check every one regularly.
Cover pools and Jacuzzis when not in use. An average sized pool loses about 1,000 gallons per day. A pool cover can cut these losses by 90%.