Here's the scoop: I'm a post office snob. Why? Because I'm there all the time for any number of reasons: mailing someone books, sending reams of paperwork to my agency, shipping birthday presents, paying the IRS, checking my p.o. box, etc. etc. When you go to a place a lot, you get to know all its services and systems pretty well. You know exactly what to do and have everything ready to go when you step through the door. And that means you get impatient with people who don't know these things...