1. Lift foot 1 inch higher than next step. Particularly when barefoot.
2. When donating blood, and the blood sucker can't find your pulse because he's "had too much caffeine" and you got similar results the last TWO times he's drawn blood from you. ASK FOR SOMEONE ELSE!
3. When using a small screwdriver on a smaller stuck screwhead, put it on something solid! (And I don't even remember what happened with the fingernail)