exactly the same as the guy above plus a few things.
mechanics gloves (aero spokes and cog teeth are sharp, you'll want these if you slip)
adjustable wrench (for various things, you never know, helped some other people who didn't have 15mm axle nuts)
pair of cutters (cutting zip ties that hold on the transponder thingy mostly)
aero spoke holder
multi tool with spoke wrench
park tools grease (for the threads, so you don't seize a cog as easily)
I think that's it. I ride clinchers, so if you ride tubulars just replace the tire levers with spare wheels.