I'm leaning towards not having a guest book. However, I don't know proper wedding etiquette. Am I supposed to send thank you cards to all the guests who attended? I'm thinking without the guest book I might forget some people or end up sending to people who didn't even attend if I just went by invitees or those who RSVP'd. I will obviously be sending thank you cards to everyone who gave a gift, but wasn't sure about those who didn't. Probably rude, but I almost feel like they should be thanking me for the food, entertainment, favors, etc.