I usually listen to CBC radio when I’m in the kitchen, often preparing food. When I started hearing about students Debs Torr and Chris Dobson at the University of East Anglia challenging 15,000 fellow students to delay their morning wee until their shower back in 2014, I listened. Dobson said they could fill an Olympic-sized swimming pool 26 times with the water saved. And if everyone in the UK got on board, 720 million litres (195 million US gallons) would be diverted. I’ve been a convert ever since. If you’ve just thought ick or eeewww, let me remind you that your shower drain is connected to the same exit pipe as your toilet. Ah, well, that sheds a whole new light on the matter.