How To Write Address On Card . Names ending in s, sh, ch, x, or z. Using them correctly shows you hold your guests in high esteem. How to Address an Envelope All the Different Ways JAM Paper Blog from www.pinterest.com Write the recipient’s address on the right hand side of the postcard. To conserve space on your business card, include the suite number in this line as well, placing it after a comma that separates it from the street address. Add your city, state and zip code on the line under the street address.