What do you think about having assigned tables at a shower? I've never seen it done and I don't really want to bother with it, but my sister is having 30 seats for about 26 people at mine so we just want to make sure everyone gets to sit with someone they know or came with and it doesn't get all split up with 1 open here and 2 there, or should I just not worry about it and people will figure it out?