Mailing Shipping and Notary services There may be others who try to do what we do, but no one can deliver the Superstar Customer Care you get at Mail USA. Our staff prides itself on our expertise and understanding of the package transportation network-we know all the rules and tricks that allow us to guide you on the best way to pack and ship your important documents and special items.SAVE 30% ON NOTARY SERVICES AND 10% ON FEDEX SHIPPING