Sept. 15 (UPI) -- It's time to start thinking about what you want Santa Claus to bring you this year.

If you already know, you can write a letter and send it via the United States Postal Service.

The USPS Monday kicked off the official 2025 season of USPS Operation Santa. The program is now in its 113th year, and it connects letter-writers with people and organizations, er ... Santa, to help fulfill their holiday wishes.

Families can submit letters at USPSOperationSanta.com. The website gives tips on how to write the letter and how to send it. Letters must be postmarked by Dec. 6 to be eligible for adoption and fulfillment.

This year, participants can fulfill wishes from multiple people within a single household by adopting a family letter.