Don't.
I went to a wedding this weekend with FH where we packed up us and the dog on a holiday weekend to the Jersey Shore. We paid an absurd amount for the hotel and sat in 3 hours of traffic, all of which I was okay with because we were going to get to see friends, relax and have a good time. We got to the venue which was gorgeous, it was an outdoor ceremony in 90 degree weather with no shade and no fans but, they were married and it was beautiful. We go inside and I have FH get us drinks while I get some food and we're all good. FH comes back, we mingle and enjoy being inside, cocktail hour is over so, we make our way in the room. We sit down for intros and dances and all that good stuff and then the servers come over and when I ask for another drink and he asks if I want to open a tab. My jaw literally dropped. I asked if anything was hosted? He says soft drinks. oh. FH and I brought enough cash to tip. There was NO mention of a cash bar even at the bar where we just got a drink.