Today I met a post office clerk.

He was so friendly, though most of the ones at office I go to usually are. While I was filling out the customs form, I could hear him giving directions and suggestions for the different needs of the people filing in... AND he was doing it while attending to customers in the extremely long line. This place is so good that the post office woman at the line let me know that I filled out the wrong form, and gave me time to write the new one.

After I got to the original post office clerk I mentioned, he and I made small talk about how our days were going. I eventually said, "Wow you guys are so fast."
"Oh we try, but thank you."

Damn, I love the post office. Also here's a great write up in the NY Times of why some other people do too.