When we return to the airport we usually just return out rental car using the proper lane to get to rental cars. Then we are stuck hauling all our bags/strollers/luggage back through the garage, up the elevator, etc. Is there curbside check-in for Northwest Airlines and if so, how do we get to it and then get to rental car return? I am always nervous and a little confused when entering the airport (and we are usually running late), so I would like to know exactly where to go to get this accomplished. Thanks!