Which is cheaper priority shiping box or your own ...
Feb 24, 2018· The primary benefit of these boxes are that they are free. Boxes can cost $0.25 to $1.00 or more so if you use the USPS provided boxes you are saving money. There are also specific boxes such as Regional Rate A, RR B, RR C, Small Flat Rate Boxes, Medium Flat Rate Boxes, Large Flat Rate Boxes, Flat Rate Padded Envelopes, etc.