The USPS shoebox rate is a great deal for those who need to send a small package or letter. This service provides discounts on shipping rates for packages that are sent in a shoebox. The cost of this service varies depending on the weight and size of the package, as well as the distance it needs to travel. For example, a one-pound package sent from New York to California would cost $5.15 with the USPS shoebox rate, while the same package sent using regular shipping rates would cost $7.35. This service can be used for both domestic and international shipments, and can save you a significant amount of money on your shipping costs.