<prompt> Translate the following text to EnglishIsipokuwa kwa ajili ya kuundwa kwa discount work-sharing na Express Mail, msingi bidhaa mstari wa Huduma ya Posta alirithi kutoka Congress wakati wa Postal marekebisho katika 1970.  <response>: Except for the creation of worksharing discounts and Express Mail, the basic product line of the Postal Service was inherited from Congress at the time of Postal reorganization in 1970. 