A little late now, but this (via Matt) agrees with my own college experience. I drank a huge pitcher of water every night that I drank heavily and can’t remember even one time that I woke up with a hangover. I remember getting up to piss a lot, but after a night of drinking that happens anyway.
Another bit of useful know-how that I picked up empirically is that you can fix the spin-dizzy feeling by spinning twice in the reverse direction. My wife, a neuroscientist with experience in balance, scoffed on the grounds that nobody had ever published on that topic. Naturally Dr. Mrs. F. was amused when someone did publish that result something like six months later.
***Update***
I can see how people associated the second part with booze, where in fact I meant the dizzy feeling that you get after actually spinning around a lot. Sober spin-dizzy comes (in part) from the inertia of the fluid in your semicircular canals, which you beat by making the fluid stop faster than it otherwise would. Drunk dizzy happens for more fundamental neurobiological reasons. The only practical way to fight that is to know your personal line between happy times and being nursed by a patient friend.