I mailed several small, Flat Rate Priority boxes on November 16 at the Gig Harbor PO, Washington. Yesterday I checked the receipt. I wanted to track the items for delivery. One item was actually being mailed back to me, apparently. Rather than use the "TO:" address, the return address was used. It was noted that it would arrive back on November 17. It actually went from Gig Harbor to Tulsa Oklahoma, then Federal Way for a couple of days, and then arrived in Olalla today — not delivered to our house!!! Never will use Priority again.