If you want to impress a client with your caffeine savviness, take them west of downtown to Houston’s Historic Sixth Ward. Catalina Coffee sits on the corner of Washington Ave and Hemphill Street and offers some of the best coffee and espresso in town. Tour this place outside the favored hours to avoid very long lines.
Where It All Begins 83 
Darn good idea. I also meet clients in or near downtown. This coffee shop will be like a breath of fresh air.