If you need an address that isn't a PO Box and want to save money over private mailboxes, you may rent a box at the post office and just put the street address of the post office and "# box number" at the end. Mail is delivered to all post offices, so it doesn't matter which one you pick. The postmaster can also write "not available for delivery" on your letter if they don't have a way to deliver it to your address. This is useful if you give your address as a P.O. Box at some places like websites or banks but not others (such as credit cards). Writing this note will let people know that your address isn't always correct and they should send things to another location. Here are some examples of PO boxes: P.O. Box 12345 - Houston, TX 77231 P.O. Box 30034 - Denver, CO 80263-0034 P.O. Box 80164 - San Francisco, CA 94101-1664 P.O. Box 705004 - Los Angeles, CA 90070-5004 P.O. Box 111111 - New York, NY 10111-1111