The one I know is about three blocks from the CIG. After we're settled into our respective hotels we ought to stop there; it's the best place to get basic food supplies like bread, lunchmeats, etc. They've also got a large selection of premade sandwiches, and their deli/salad bar is immense; we have nothing like it on the East coast. They're open 24/7, too, which is always a plus. 
