On a recent trip to England, Andrew Dodson, 35, and his wife, Erin, 32, who live in Traverse City, Michigan, had an unexpected problem: No matter how hard they tried, they couldn¡¯t spend the 700 British pounds they¡¯d brought along.

¡°We traveled all around the country, including many small towns in the Lake District and the Cotswolds, and even the tiniest of pubs took cards,¡± says Dodson, a content marketing manager for TentCraft, a manufacturer of customized tents and accessories. ¡°Many wouldn¡¯t even accept cash. As we approached the end of our trip, we went to a nice dinner at this Indian restaurant where we hoped to spend off some of the cash we converted, only to be told they don¡¯t accept cash anymore.¡±

Finally, their London hotel let them pay their balance with cash so they wouldn¡¯t have to bring the pounds home and reconvert them to dollars.