I have stumbled upon places in the city that sell items such as sandwiches and cookies at a discounted price after a certain time. If any of you hounds are aware of similar deals, please post in this thread.
Amy's Bread (all 3 locations) - 50% off sandwiches after 4pm
Eleni's Cookies (Chelsea Market) - 50% off cookies after 6pm, and on Sundays it starts at 5pm
Au Bon Pain - 50% off bakery from 4-6pm