I have a friend who did grad school at Columbia. She moved once by subway!
Another friend has been semi-vagabond for much of his adult life. Every 4-5 years he relocates – selling all his possessions and only taking what he can take in his car. He is also great at living on the cheap. He claims it’s because he never upgraded his lifestyle with “stuff” after college – He can still live in a studio apartment – and tends to do just that… in great locations. San Diego, NYC, Cape Cod, Baja Mexico… Not needing a big place (to hold stuff) he can work for lower salaries and be more mobile.