I know you've done it as well

I’m reading Good magazine’s issue on water (which is, despite what OPEC would have you believe, our most valuable resource). This morning, I came across this Brazilian public service ad outlining a way to save many thousands of litres of water a year.

A couple years ago there was a campaign in Australia called Save Water, Shower with a Friend. Just think how much water we could save worldwide if we join all this thinking up!