People tend to check in during these times:
If you bring your smart phone with you, you can accomplish a lot while you're waiting in the extraordinarily slow lines.
Absolutely the slowest. I would never go there if I didn't have to. Always an infuriating experience.
Bring your own pen
Post office on East Madison in Seattle - very slow service...
This post office has the nicest postal workers of any post office I've ever been to.
Come during non lunch hours. Breeze through the line.