I was just reading the extremely entertaining threads about cash bars, and I know I see posts on here say again and again that if it were a cash bar they wouldn't have any money to pay for a drink. I am a little confused by this, because even at an open bar I always make sure to have cash to tip the bartender. I know he will likely get a cut of the gratuity from the venue, but I would always give at least a dollar or so for every drink I ordered. Do you all not tip at weddings?