Rules of the Anti-Flirt Club, active in the early 1920s in Washington, D.C.:

1. Don’t flirt: those who flirt in haste often repent in leisure.
2. Don’t accept rides from flirting motorists — they don’t invite you in to save you a walk.
3. Don’t use your eyes for ogling — they were made for worthier purposes.
4. Don’t go out with men you don’t know — they may be married, and you may be in for a hair-pulling match.
5. Don’t wink — a flutter of one eye may cause a tear in the other.
6. Don’t smile at flirtatious strangers — save them for people you know.
7. Don’t annex all the men you can get — by flirting with many, you may lose out on the one.
8. Don’t fall for the slick, dandified cake eater — the unpolished gold of a real man is worth more than the gloss of a lounge lizard.
9. Don’t let elderly men with an eye to a flirtation pat you on the shoulder and take a fatherly interest in you. Those are usually the kind who want to forget they are fathers.
10. Don’t ignore the man you are sure of while you flirt with another. When you return to the first one you may find him gone.

The club’s main purpose was to protect women from men who abused “the precedent established during the war by offering to take young lady pedestrians in their cars,” according to an article in the Washington Post. Helen Brown, secretary of the 10-member club, warned that men “don’t all tender their invitations to save the girls a walk.”