The United States Postal Service (USPS) is the only organization in the country that regularly delivers to every residential and business address. USPS is committed to providing secure, reliable, and affordable delivery of mail and packages to more than 157 million addresses in the United States, its territories, and its military bases worldwide. Processing and delivering 47 percent of the world's mail, USPS manages over 30,000 retail locations and constantly innovates to make customer experiences better. Customers praise the friendly and efficient staff at the USPS location at 150 Harbor Dr. The employees, such as Carrie, are described as "incredible," "totally competent and efficient," and "very personable." The staff is enthusiastic in providing instructions and support, even for tasks like passport applications. They are patient, calm, and helpful in assisting customers, including those with young children. The USPS location in Sausalito is a popular choice for passport services, with customers appreciating the easy parking and the overall positive experience. Reviewers highlight the joy and satisfaction the employees find in their work, which contributes to the pleasant customer experience.