It is not a hard thing to do, you can get locations online and most post offices can get you an application. I needed one expedited and it took 15 days, my renewal did not need to be expedited and it took 22 days to receive it. I got my photos at a Walgreens and like the DMV they snap the photo when you are not ready so be ready when you step in front of the camera.

A passport also helps when you order a rifle from the CMP!