Anecdotally I'm doing it at least once a week. Unlike several other respondents I rarely split a food bill (easier to just do that in the restaurant), but whene

Anecdotally I'm doing it at least once a week. Unlike several other respondents I rarely split a food bill (easier to just do that in the restaurant), but whenever there's advance tickets that need buying for transport or basically anything with an entrance fee (gig, play, sporting event, etc) then IME 100% of the time one person buys and the other attendees make them whole.