I haven't tried that yet, but was actually planning on trying it myself next week. I was going to try one of the coffee shops within Barnes & Noble or Books-A-Million as I would be able to go from the cafe to the store and back as needed so as not to appear to just be hanging around, plus i have a hard time sitting still for very long. And there are a lot of books I need to catch up on. 
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I was always told that there is safety in numbers, so I majored in math.
"Lunch...is on Millie" - Ace Rimmer