Aren't you tired of this list by now? :) Guest lists change in a blink of an eye. There are sure to be a few folks on the fence - give them a call, if need be. Double-check to make sure that any special needs will be accommodated throughout the day. After that, just let it go. Someone who you were sure would be there, won't. Someone will be too early, and someone will be late. And maybe, someone you've never even heard of will show up!