Edison, the man who invented the light bulb. He found that he got his best ideas in that funny no man’s land between being awake and being asleep. So he used to sit in a comfy armchair with a few ball bearings in his hand and a metal bowl underneath. When he dropped off to sleep his hand relaxed, the ball bearings fell on to the plate and the noise they made woke him up. He’d then pick up the ball bearings again and sit back and get into that same drowsy, dreamy frame of mind that he’d just been in.
