Write the recipient’s full name in the center of the envelope
Write the street address or P.O. box below the name
Write the apartment, suite, or unit number on the same line as the street address or on the line above it
Write the city, state, and ZIP code on the next line
Write your return name in the top left corner
Write your street address below your name in the top left corner
Write your city, state, and ZIP code below your return address
Place the stamp in the top right corner
Make sure all writing is clear and legible
Use the correct postage for the size and weight of the envelope