I ordered an item from repairclinic.com and thought they were sending it by regular mail (USPS). They used FedEx SmartPost - FedEx ships the item via FedEx Ground to your local post office, which then delivers it.
The shipping weight of the item I ordered is less than 1/2 pound. FedEx now estimates it will take 9 days to reach my location.
If repairclinic.com had thrown the item in a mailbox, I would have had it in 3 days. We are now in shipping day #4 and the item is still 400 miles from my local post office.