FedEx predicts that Monday December 10 will be the busiest day in company history.
The shipping company expects to move 19-million packages on Monday, alone. That is more than double the typical day's volume.
For the period between Thanksgiving and Christmas FedEx says it delivered 280-million packages. That's 13 percent more than 2011.
FedEx says December 22 is the last day to send packages in time for Christmas delivery.