You don't need to be an employee of the nation's largest tax-preparation service to eat in the restaurant of its corporate headquarters. You can easily spot the real paid staffers in the spacious dining facility (they all wear laminated tags clipped to their clothing), but as many nonemployees dine in the place. The cafeteria, with its separate stations for pizza, signature sandwiches, cold salads and grilled items, is operated by Treat America, so the breakfast and lunch fare is uncomplicated, hearty and cheap (and not always very good, if you've ever nearly chipped a tooth on a tater tot). The seating areas are sunny, soothingly quiet, and have terrific views of the downtown office buildings filled with people holding jobs. Take your copy of the want ads or your laptop into the dining rooms, sit back with a cup of coffee and look industrious. Maybe whisper a prayer to Saint Cajetan, patron saint of the jobless. You'll feel you've accomplished something.