The US Postal Service (USPS) makes daily deliveries to both homes and businesses, but does not adhere to a strict schedule. When mail is often delivered is contingent upon the specific mail carrier and the specific route taken.
A post office box at a USPS shipping facility is convenient for people who prefer a regular time to retrieve their mail. The mailboxes at these facilities are often accessible around the clock via key card. Mail can be dropped off at any time, and shipping supplies can be purchased from a vending machine.
