Newest Addition to the Popular Wedding Stamp Series WASHINGTON — The U.S. Postal Service continues its celebration of weddings with its most recent issuance to the popular wedding stamp series — the 70-cent Yes, I Do stamp. Customers may purchase the stamps at usps.com/stamps, at 800-STAMP24 (800-782-6724), at Post Offices nationwide or at ebay.com/stamps. First […]