Heard about a website called INWEGO from Clark Howard yesterday.
They sell tickets that aren't sold, and currently, they have around 50 tickets to the Clemson GT game. don't know where these tickets are located, but it'll get you in the gate.
These tickets are free with a membership to INWEGO
Membership is $29 a month and you can cancel at any time....so if you want to see the game for $29...