Is United States Postal Service operate on Sundays?
Do USPS operate on Sundays? Is USPS deliver mail on Sundays? Do USPS branches operate on Sunday? Can you post packages through USPS on Sunday? Can I access USPS services on Sundays? Does USPS provide package shipment services on Sundays? Do USPS work on the weekend? Do USPS branches handle mail on Sundays? Is USPS operational on Sundays? Do I get mail on Sunday through the United States Postal Service?