I wouldn’t dare defile Douglas Adam’s memory by not mentioning that you should keep a towel with you at all times, but my second contender is a surprisingly short three-parter:
- never lie.
- never tell the whole truth.
- never pass up a chance to use a real bathroom.
If unsure, asl yourself this: What is this an opportunity for?
I did that, and realized it was an opportunity to clean my mirror!