For books, movies or music, packages will be eligible for USPS Media Mail, which is the cheapest way to ship a box. Prices start at $3.92 for a 1-pound package. However, it is also the slowest ...

The boxes are provided by USPS for free ... USPS Priority Mail with variable pricing is usually the cheapest way to ship large, light packages. If you need something delivered quickly, parcel shipping ...