The U.S. Postal Service alone expected to process more than 500 million letters, packages and cards.
The crowds arrived early to the post office at 30th and Chestnut Streets in University City.
Christmas is next week, and there were plenty of gifts to send and returns to make.
Meantime folks like Alex Victorin were dropping off Christmas parcels at the Federal Express facility at 20th and Market Streets.
The outgoing shipments there were carefully wrapped and piling up.
FedEx expected to see double the usual volume today.
Action News was at the company's Grays Ferry facility earlier Monday as packages from near and far were being unloaded.
Boxes big and small, light and heavy were put on a long conveyor belt then sorted and loaded into trucks to be distributed across the region.