I'm sorry but "I fogot!"......hello they are a adults! It's ridiculous that you have to send out reminders! People are just amazing and not in a good way!
We sent out a save the date, and an invitation with a please RSVP by March 1st becuase we aren't doing a group rate, so if they wanted to wait until the last minute they were more then welcome to. I have taken the stance that I am not hunting people down, if they come they come, I am not their babysitter!