Busiest day of the year for USPS

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated.

HOUSTON -- If your mail person seems a little cranky today, try to cut them some slack. It's the busiest shipping day of the year for the United States Postal Service.

About 600 million packages and cards are expected to be shipped nationwide, and all that is done with just over 600,000 employees!

The thought alone could make you go postal.

Notice: you are using an outdated browser. Microsoft does not recommend using IE as your default browser. Some features on this website, like video and images, might not work properly. For the best experience, please upgrade your browser.