I'm curious to know what bothers you most of all when it comes to weddings. A certain tradition, breach of etiquette, commonly used phrase, whatever. If you could narrow it down to one or two pet-est peeves... what are yours?
I'd say mine is the phrase "my/her/your special day". First of all, there is another person in this marriage called a "groom", so it should be "our special day". Second of all, there are many many MANY special days in one's life. Births, graduations, promotions, etc. It's used too often as an excuse to get away with bad behavior. You know?
My runner up would easily be having a personal attendant. From personal experience. (Not that I had a PA - I was a PA.)