What happens when you are driving around and have a killer idea that you want to get down before you forget?
You could:
1. Pull over and make a note-- but oops you're on the freeway and the next exit is miles away
2. Try to remember-- and then chastise yourself later because it slipped your mind
3. Scribble it on a gum wrapper or gas receipt-- which may be discovered later under the seat with illegible smudges
