Rule 3 of 20

Re dress code: gentlemen are no longer expected to wear dinner jackets, more’s the pity. But if the ladies put on a nice dress, do their hair and daub on make-up, the least a chap can do is make an effort. Middle-aged, middle-class men should pass on the standard jeans/cords-shirt-and-sweater combination and consider the possibilities afforded by a jacket, or an informal suit. Tucking one’s shirt in is also obligatory for any male not on their summer holidays or young enough to attend kindergarten.