You'll need a 56-cent stamp for a standard-sized postcard. However, oversized postcards need letter stamps, which start at 73 cents, the Postal Service says. Enthusiasts say it's worth it.

The rules are simple. Volunteers have to prepare and submit a picture of a sample postcard so their handwriting can be approved. Those who try to use computers to write the cards are rejected.

Letter-writing might be a lost art, but not everyone is accepting the fall. BTS, the Grammy-nominated K-pop sensation recently surprised their fans world over (also known officially as the ARMY ...

The Peace Postcard Project, part of HI’s annual Sleep For Peace program, is expected to generate about 10,000 pieces of mail that will be sent to the UN from across the globe, its organizers said.