I'm having an extremely informal wedding (and absolutely no idea how many people, since RSVP's haven't started yet -somewhere between 80 and 150, but there's really no predicting). I know I want to have a groom's cake, but I'm not sure what the etiquette is when serving two cakes. A lot of people are coming from out of town, including my FH and myself, so it doesn't make a ton of sense to have lots of leftovers because there won't be many people to take them home. Does etiquette demand I have enough of both cakes for everyone? That just seems silly. Enough of the official wedding cake for everyone, but a smaller groom's cake? I'm not one to get too hung up on form (seriously - very informal wedding), but I want to make sure I have what I need. Any advice?