My husband and I are retired and use "our" individual credit cards and he pays most of the time but if he's "busy" or still eating, etc. I will pay, depends on what is happening when it is time to pay. Why not create a joint "recreation" account or something and just pay from there. When we go on vacation, who buys what gets all intertwined for us (if I make the reservation for a hotel, for example, it goes on my credit card).