Comparing Carrier Services
No single carrier is the best, everyone has its advantages and disadvantages. The US Postal Service offers the best price on lightweight residential parcels; DHL is the best for international shipments and the United Parcel Service offers the best heavyweight air deliveries. The charges of most carriers differ even on the same shipping routes, which is why it is important to check all of them and then choose the best deal. Also, don't wait till the last moment to place an urgent order as it doubles the cost.