On a serious note, If you have ever lived off the grid, had a slow well or gone camping or to summer camp, it becomes evident how much city water we waste really fast. Just being aware and taking a few practical measures can make a big difference. my guess is that lawn/garden waterers are much bigger offenders than normal users. Just like making a separate trip in a vehicle for every little thing rather than planning and making one trip. When we have a bottomless cup at our disposal, it's very easy to waste.