Let's see...
-Clothes for all three days, plus spares
-One nicer-than-average change of clothes, if I've got space
-Toothbrush, toothpaste, shaver, shampoo, soap
-Ear plugs (you laugh, but they really help!)
-iPod (because eight hours driving round-trip without music is just....awful!)
-Aspirin (you never know...)
-Roll of duct tape (in case I have to make any more
Fresca manpurses)
-Fresca (for outside the Dome only, of course)
-Camera (PowerShot A620, with the obligatory extra memory)
-Batteries (AAs, quantity As Many As I Can Find)
-iBook
-Safety glasses (because I've never been able to wear FIRST's comfortably)
-My Gracious Professionalism (if for no other reason than to awkwardly shout out "YES!!!" when I pass the sign)
Of course, I have to cram all of this into my suitcase first--none of it currently is packed. (And it'll have to wait until after the 10-page paper.)