http://www.ehow.com/guide_18-http://www.ehow.com/guide_18-cultures.html.htmlwww.ehow.comhttp://www.ehow.com/how_4872690_label-mailing-envelope.htmlLabeling a mailing envelope involves writing the recipient's full name, street address, city, state and zip code in the middle of the front. Include a return address on the front or back of an envelope with helpful tips from a jack-of-all-trades in this free video on writing letters. Published on 3/26/2009