We have a lot of young, heavy drinkers attending the wedding, so we have no intentions of having an open bar because there is no way we could fit it into our budget. We've already got a few people saying "it'll be an open bar, right?" And I just laugh and say "umm no way"... But now I'm worried people expect it? Should I somehow mention it on the invitation so that the people who want to drink will know to bring cash?? I wish I could provide them all with alcohol but it's out of the question entirely.