Heading up or down the East Coast? The train is a great option, but you could also consider the bus. I discovered today the DC2NY.com bus. It leaves from Dupont Circle in Washington, D.C. and will take you in about 4-1/2 hours to Penn Station in New York for a mere $55 dollars. It’s cheaper than the train. Longer, but there are movies and AC outlets, so not a total waste of your time. If you’re heading between East Coast cities it’s definitely an option to consider.