My advice for the morning after one of those nights where you ended up playing stupid bonding games over dozens of Corona Lights and finding out waaaay too much about your sister's ex-boyfriend, wake up on your girlfriend's couch with your boots still on, locate your purse under a pile of pizza boxes and randomly soaked dish towels (don't ask) and rally the troops to pile in the Explorer to head to the local fast food place. I swear by curly seasoned fries, onion rings or anything greasy from Jack In the Box or some fast food restaurant. Our favorite combo is curly seasoned fries dipped in ranch with a strawberry shake.
If you are having a mild hang over from a night of dollar shooters, then work out. You will sweat out the hard alcohol, or so it feels. I swear, I can smell the tequila and what not being purged while I'm on the eliptical machine.
Or if you are having a morning after where you are immobile and can't even fathom getting so much as apple juice past your lips, flip on some Sex in The City and vegitate.
Oh and don't take that hot shower the night that you come home inebriated. Chances are you won't make it out of the shower until you are rudely awakened by a roommate and "Hey, you ok? wake up! You alive? What the hell happened to you?"
Good luck.