It started during my first year at a large law firm in Chicago’s Sears Tower.  The Starbucks there, furnished with gleaming wood tables and chairs and a few armchairs to one side, occupies a corner of the Tower’s first floor.  I usually worked weekdays from about 7:45 a.m. to 6:45 p.m. with a half hour lunch at my desk, then another four to six hours on the weekends.  I don't drink coffee, but when I was especially busy, I stopped in Starbucks in the morning.  I drank Chai La...