@blowdart:you're obviously not THAT old. I don't care about sleeping anymore
When I was in my 20s, I had a very hard problem to solve, something related to a set of transaction reconciliations in a bookkeeping software my company was writing.
I was driving my Guzzi V35 Imola home from work, and I saw straight in front of me, in grey and yellow characters on a 14" screen, a fully implemented algorithm that would solve the issue. After avoiding the car stopping in front of me, I quickly drove home and wrote it down.