We use the most reliable couriers to forward our customers’ correspondence and merchandise and therefore the minimum rates per shipment may seem high when you only send one letter. However, USAbox offers you the possibility of accumulating items in your box until you wish to ship them all together and this way you can optimize the cost. If you receive frequent items, it also makes sense to opt for a monthly fee plan because the rates per shipment will be lower and you will have savings over time.