What do you bring to the track with you for a day of racing?

5 gal for gas for the car, 2.5 kw generator, battery charger, track tool box with just enough tools to lash valves, and very minor work (I go to race not work on the car), spare plugs, cap, wires, rotor, carb jet assortment, floor jack, torque wrench for lug nuts, timing light. Tire air pressure gauge.