I had a piece in the Boston Globe's Ideas section yesterday about Christmas Superstitions.
If you love reading about old superstitions (and I really do), hie yourself to Google Book Search and look for British Popular Customs, Present and Past. Be warned, though, that reading aloud from this to others is something that can be done only in very small doses. There's a limit to how many "Did you know"s? most people want to hear ….