The Village Postal Center rents out mail boxes but it does more than that. Besides having an address to have mail sent that you don't want the person you're living with to see you don't have to live in a doorman building to have packages delivered. They also serve as a shipping agent for the big companies saving you a trip to the UPS centers which aren't very convenient. NYU students get 10% off on the shipping services making it a lot cheaper sending thiings home at the end of the school year. They have postcards and greeting cards too but that's not a good reason to go there.