There are, of course, environmental benefits. In a bid to reduce his carbon footprint to the absolute minimum, environmentalist Donnachadh McCarthy, 51, limits his showers to about twice a week. "The rest of the time I have a sink wash," he says. "I believe that I'm as clean as everyone else." It has helped him to get his water consumption down to around 20 litres a day – well below the 100 to 150 average in the UK.Maybe he should start drinking his own urine, that will cut down on his water consumption, and eating his own crap. In a short while, his carbon footprint will go way, way down.
Actually, I think two showers a week supplemented by sink washes should keep a person pretty clean if they don’t work in particularly dirty occupations.
My Grandma was clean as you please and only washed her hair once a week. It didn’t need any more than that.
Not everyone can do that, though. Certainly I can’t.