| Clue | Source | Date |
|---|---|---|
| This expression for what may and may not be done was used as the title of a book on golfing in 1902 (3,3,3'2) | ||
| Behavioral guidelines | USA Today | 08 Jan 2021 |
| Everyday rules | Wall Street Journal | 27 Jan 2020 |
| Basic guidelines or rules | Universal | 23 Aug 2017 |
| Basic guidelines or rules | ||
| Basic guidelines | ||
| List of behavioral recommendations | ||
| Basic rules | ||
| Rules of behavior | ||
| Informal guidelines |