farmacia viagra generico 50 mg a Parma The United States Postal Service employs approximately 617,000 employees. It is in the top three of the largest employers in the United States. Every day, postal workers deliver 660 million pieces of mail.  That is 155 billion pieces annually. In 1997 a former Postal employee, with the help of the United States Postal Service founded Read more about National Postal Worker Day[…]