USPS Priority or Express with confirmation is about 1/2 price of corresponding Fed Ex service (and UPS). Tracking is as easy and claims through the Post Office are handled much better than FedEx/UPS (especially UPS). And most Mailboxes, etc. type places will take postal service as well as FedEX/UPS. Or the cheapest way, just go to the closest post office.

We are in the logistics business, so we deal with this stuff everyday.