The best thing is to drink pedialyte, the night you drank. You can buy it at any drugstore. Its for dehydrated infants and replenishes electrolytes. Great stuff!!!
Hydration makes sense, and getting something to eat before going to sleep.
When I was younger I somehow managed to go jogging after those nights thinking I'd sweat the juice out. I still didn't feel all that great afterward, but seem to recall regaining equilibrium sooner.
Did you read "The Right Stuff?" Woolfe describes the test pilots going to work huffing pure o2 from a tank to burn off the residual alcohol from their previous night's carousing. Does anyone know if there is any sense in this?