[PeterisP]

An extra bath probably spends more water than a month of my shaving, and making an extra serving of beef IIRC spends even much more freshwater than that. Should we really worry about trivially small amounts of water? There may be some warm fuzzies of 'doing something', but the actual impact is insignificantly small compared to other choices - such as which agricultural products are used, and if people choose to have a lawn.