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.
That’s a good one! I would also add: When asked a question, determine whether this question can be properly answered in one word. If possible do it!
This is particularly directed at my wife 💋