We have three sets of money :- my money, Vera's money, and our money. This last comes from several sources and is used for basics, i.e. food, meals.
We each spend our own money on whatever we wish, occasionally buying each other some small thing and we take it in turns to pay the bus fares. If Di behaves herself until next week, she'll qualify to enter into the draw to win a free drink (but I shall probably win that).
We isolate ourselves, so that when we get back together, no one is missing