Postal worker Paula McLemore helps Jessica Taylor with her mail at the White Hall Post Office on Tuesday afternoon. This week, the U.S. Postal Service is facing its busiest mailing and delivery days of the year, according its website. The busiest day for mailing during the holidays was expected to be Tuesday, when the postal service expected to process more than 600 million cards and letters.

Postal worker Paula McLemore helps Jessica Taylor with her mail at the White Hall Post Office on Tuesday afternoon. This week, the U.S. Postal Service is facing its busiest mailing and delivery days of the year, according its website. The busiest day for mailing during the holidays was expected to be Tuesday, when the postal service expected to process more than 600 million cards and letters.