Atlanta day five

I knew that Tuesday was my last full day in Atlanta and it was after a day of rest, so, if I was going to have any further adventures, Tuesday they would have to be. I decided to take the MARTA back to Little Five Points. I hadn't spent enough time there on Sunday. (Here the threatening music starts.)

( Pride goeth... )

Here's a question - how do you know/decide whether and how much to tip people? Looking back over the trip, I tipped someone who went out of her way to accomodate me, who seemed quite surprised that I gave her money, and someone else whose service was fine but not especially inspired seemed surprised that I didn't tip him. Hmmm.