Well, I like these eights:
8a) Teenaged Clark, on learning to travel Super-style: If at first you don’t succeed, fly, fly again.
8b) Martha, on cooking: If at first you don’t succeed, fry, fry again.
8c) Cat, on flirting: If at first you don’t succeed, ply, ply again.
8d) Tempus: If at first you don’t succeed, go back in time, stupid!
(Although, seeing that your list went from 10 to 1, maybe your eights should also have gone from d to a...)
Ann