Waiting for Hot Water.
Flagstaff has been officially running programs to help the city save water for almost 20 years. Just in case you were unaware you are to only water your yard during certain days of the week and at certain times. More info at www.flagstaff.az.gov.
One of the latest things that you can do to save water is a self learning instant hot water system. This system learns when you use hot water, remembers it and then makes sure you never have to wait for it. It is a great solution for people who have predictable schedules.