GXG service is the Postal Service’s premier international service for mailing extremely urgent documents and pack­ages to over 190 countries for date-certain, money-back guarantee delivery. And Click-N-Ship service is one of the Postal Service’s most popular Internet services, with mil­lions of customers using the system each month to calcu­late postage rates, print mailing labels with postage, and prepare Customs forms — all from the convenience of their own homes and offices. On April 16, 2008, GXG service was added to the suite of international mailing options on Click-N-Ship service, making it easier and more convenient for customers to access GXG service online. Customers who pay for GXG service online receive the extra incentive of a commercial base price that is 10 percent below the price at retail.