Did you know that using a treadmill can be educational? To offset boredom during an hour's treadmilling session I've found it necessary to listen to anything that comes on the radio during that time. It's amazing what fascinating snippets of knowledge you can pick up from doing that.
Did you know that around 456BC a Greek dramatist died when an eagle dropped a tortoise on his bald head? Or that in 1718 the Irish Parliament passed the Coffee Adulteration Act by which it was forbidden (among other things) to attempt to pass off sheep dung as coffee beans? To get more up to date, did you know that copper door handles kill germs whereas the little buggers thrive on those made of aluminium or stainless steel? This must mean that when I wash my hands before making sandwiches in the kitchen and then bring the food through into another room to eat, I'm eating... No, let's not go there.
Anyway, what's all this got to do with getting on with writing my novel? Absolutely nothing. Unless I grab the idea of having the villain of the piece become a victim of a falling tortoise.