Ahoy,
One of the more under-rated fixtures on the NY food scene are the produce cart vendors. NY has a lot of people to feed, and it's one of the best ways the city tries to get fresh fruits and veggies to everyone. In my neighborhood, they are common and easy to come by. And several of them have been incredibly dedicated. I remember rain for days and I would still see this one cart out there through all the rain. I've seen them in the winter and at 3 in the morning. They're usually really friendly and will even haggle with you if you feel like it.
Produce carts have made it very convenient and easy for me to get fresh fruits and vegetables in my lethargy of walking the extra block to get to a grocery store. They are friendly faces and people you can talk to about your produce. At the end of the day, they're just like you or me trying to make it in the big apple, and I'm happy to be buying from them.
refreshingly stocked,
jt