I think anytime you mail a letter at the window in the PO now you get a tracking strip to keep track of when its received AT NO EXTRA cost. Janice you might check into that because I mail a LOT of stuff for work and if I take it into the PO and have them stamp it they always give me a tracking number! I don't see where the $180 would come from.. I sent you my information because I truly love the swaps..not fond of the "rules" but can live with them.