There was a shuttle between Poughkeepsie and the NYC airports that was convenient and fairly inexpensive, and it was popular with the Vassar students, so I used that to get the airport when I flew home to Utah for Christmas. I, of course, planned to repeat the route to get back to campus when I returned after Christmas, but was thwarted after landing in NYC when I found that the shuttle company had gone out of business.
Insert panic and general freaking out here.