At The MailRoom, you can buy just a single stamp, a book of 20 stamps or a roll of 100 stamps. We will always give you the option of sending your package with the Postal Service. The Postal Service delivers to EVERY address in the country EVERY day. They are the only shipping service available for our servicemen and women who are overseas with APO, FPO and AE addresses. If you need to send a package to South America, Europe, Asia, Australia or Africa, International Priority Mail is often the best service for the best price. We’ll even complete all the customs forms for you!