USPS Mailing Guidelines for First Class Mail – Letters, Postcards, Envelopes & Packages

2016-07-21T19:35:44-07:00By |Resources & Tips|

We help alot of clients not only design custom postcards and similar pieces of media, but also help them foresee what particular costs of mailing them are.  You wouldn't want a design to be too big, causing the size of the envelope to be classed in t [...]