This server allows you to input an address and have it corrected so it's U.S. Postal System-friendly. The Address Server will fix the street name, capitalization, add a ZIP code, add the Plus Four designation and more. Then you can download a Postscript file of the bar code for the address, "suitable for printing on an envelope," and likely to speed up mail delivery times. This is geeky as all get out, but useful.
NATIONAL ADDRESS SERVER
