[normalmutant]

-Have fun
-Sleep (this is a big one)
-Get to know the teams (scouting doesn't count)
-Cover an article of clothing with buttons
-Check out the locale (ARCH. ZOMG)
-Check out FLL and FRC teams (FLLers give out awesome freebies) and exhibitors

Most of all, don't get discouraged if you screw up (we screwed up terribly last year). You made it this far, so enjoy and try your hardest at the competition without worrying about the results.