We started accepting Venmo with our most recent dance (we're "BIDA-dance" on Venmo). There's a fee, so we don't advertise this prominently, but we do have it for people who ask. About 10% of our income was Venmo on Saturday night.
Previously we'd do this ad-hoc, where someone would send money to me (or someone else) and I'd put cash from my wallet into the till, but that's not great.
One risk would be that if we took in enough of the money electronically we wouldn't have enough cash to pay the performers. We're not close to that currently, but if it did happen we'd need to get set up for writing checks at dances.
Jeff
(Patrick, I think list etiquette here is to respond on list; not sure why you don't want us replying to the list? If you're not interested in this thread you should be able to "mute" it in your mail client.)