A sign of a good home -- Miss Manners on the bookshelf.
No kidding. One of the things that most attracted me to my wife was that I thought as the mother of my children she would raise them to a higher standard of manner and etiquette than I ever could. And that's turned out to be the case. Along the way she's improved mine too!
Just like GWB said at the Crawford High School today when a student asked what advice he had for them: "Listen to your Mother!"