canopy, minimum 12x12.
tools, all metric
gas, about 20-40 gallons depending on time on track.
rain tires 1 set
slicks or prefered trackday tire 1 - 2 sets depending on time on track.
collapsable chairs to plant your ass into between sessions
food
lots of water
leathers w/ liner
spandex pant and shirt, you will thank me later when you finf out its a bitch to get in and out of leathers when sweaty
boot sox
boots
gauntlet gloves that fit, at least that wont create hot spots in your hands.
helmet
your bike, safety wire oil fill cap, caliper bolts, oil filter, and axle pin
do fresh oil change before track day
check cables, lines, hoses, chain slack, air filter, tire pressures before each session.
check with your local track about antifreeze type. some dont allow the standard stuff.
extra cash, just in case.
video cam, we want to see how you do.
stands, front and rear.
warmers if you want them, not needed but do help with the heat cycle issue breaking down the tire life.
spare axle, nut, washer, and adj. plates
FULL SERVICE MANUAL!!!!
extra oil, figure 1 qt just in case.
misc. cleaners and lubes.
tape to cover your glass ware on the bike. if its there.
2 plastic bins about 12x8x8 in. for parts and rags or whatever.
bananas!! your gona want the potasium for muscle aches.
crackers!! for salt needs on the brain.
eat light thru out the entire day. do not eat heavy foods. NO BEER!!!

i live on salads, wraps, and fruit juices.
if your camping out, duh, a tent and clothing. maybe a fire pit too.
if its an overnight, bring stuff to shower with.
power cords, preferably 25 footers w/ 3 gang ends.
either a power generator or buy power at the track.
a big ass fan to keep you cool. or heater to keep you warm.
foldable table to put shit on.
tie downs and 12in nails to anchor shit.
oh and a hammer. dont use your hands.
if u got it, a second suit. just in case. hopefullly wont need it but ya never know.
thats all what i bring...i think... other than my kids and wife, yeah i think it covers it.