Also, a few more things:
Be prepared to walk
And if the weather looks like it has any remote possibly of rain, be sure to bring your own rain gear. All of east TN will be sold out; trust me, I know from a previous experience.
(Last year's FL game...me and a buddy headed out and forgot to pack ours...we stopped at every Walgreen's/convenience store/Wal-Mart/etc. on the way to Knoxville...not even an emergency poncho! Best we could muster was large garbage bags with head and arm holes torn in them...which managed to keep us dry for -2 seconds. We took them off at halftime and just admitted our defeat (both for the Vols, and us keeping dry)...the game sucked, the weather sucked, the FL fans (we were in the FL section on the 4th row, BTW) sucked...but it was a great experience I would never trade! So much fun!)