Check out these subway card mittens. They have a handy dandy pocket for storing your subway (or other transportation I suppose) card. They were designed for Boston’s new card system where you merely have to wave your card near the reader to gain access, as opposed to swiping like it used to be on the Tube, or tokens like it used to be in Boston. Those tokens were a PITA, glad they’re upgrading!
Anyway, capital idea and must tuck that one away for if we ever move back to London 🙂