A driver with FedEx carries a package away from a van in Seattle. A huge increase in online shopping this year has demand for package delivery exceeding capacity this holiday season and stretching the delivery supply chain thin.

A driver with FedEx carries a package away from a van, Tuesday, Dec. 8, 2020, in Seattle. Store are warning online shoppers that if holiday purchases aren’t made soon, they may not be delivered in time for Christmas. (AP Photo/Ted S. Warren)