U.S. Postal Service
Information on shipping and mail systems in the USA
Whether you want to send a postcard home or some gifts from your trip, you have lots of options.
The U.S. government operates the United States Postal Service (USPS), which is likely your most affordable option for sending mail. You can buy stamps in person at any post office or online at usps.com. You can also purchase stamps at other retailers such as Amazon.com, Office Depot, Wal-Mart or Walgreens. You may send letters via a mailbox or at the post office. Click here to find a local U.S. post office and its hours of operation.
You can also ship items home using the following three services: