Economical and shortest route from New Jersey to Boston

Tough to do. The Megopolis is really good at collecting tolls. If you have anything like an RV or trailer, you must be rich and they want their piece NOW. Fire up Google Maps or Furkot and tell it "Avoid tolls". See what it comes up with. If you don't like going way up the Hudson, put another starting point or a Via on the east side of the Tappan Zee Bridge.

Good Luck.

Matt