Quite a few connected with fashion and food (though I can't really think of many of them now).
Never wear brown in town - I think it goes like that, what a load of old scrote. I think there's one about belt-loops as well but Ant should be able to confirm.
I had some about food but I've forgotten them now, maybe something about beer and wine and then wine and beer = old scrote. And always serving steak medium rare or less = old scrote.
Anymore stupid rules that are years old and should be labelled as old scrote?
What a thread.