Both the 1999 and 2000 Cotton Bowls I had hangovers to beat the world.... Ricky Williams last game was my last game as a student and we had been partying all night long out on a friends farm drinking everything we could get our hands on. I wound up pulling over on the I-20 shoulder driving to the game to puke which is still the only time in my life I have barfed after waking up from a hangover. Mix in those infernal cowbells and I was ready to murk some State fans around us until we started destroying them and they finally stopped.
As far as the Y2K hangover we had rented out Battlestein's in downtown Houston with DJs spinning on 3 different floors and was $35/pp for all you can drink. I'll leave the illicit part of the story to your imagination but needless to say about 4am I decided it was time to drive to Dallas for the game. Long about Huntsville I started nodding off and so I pulled into the next rest stop on I-45 took a party favor and said "If it wakes me up and I make the game I make the game and if not I don't" and dozed off to sleep. Sadly the drugs worked and about 45 minutes later I was awake and headed to the Cotton Bowl. The first half was annoying but nothing compared to that horrific 2nd half.... Eventually I wound up at my BFF from UT's parents house (his sister dated Robert Van Winkle in high school) and crashed hard after that game.
I swore I would never again attend another Cotton Bowl but when we got matched up with LSU I recanted my word and went to that game and thank god Roy Williams went into beast mode and destroyed Saban that day so in the end I got 2 of 3 Cotton Bowls that were good outcomes even if I was ready to kill people at the start of the 1999 game ;-)