Great thread! I carry way too many tools, for fear of needing the one I didn't bring.
I carry:
-Both of my tool boxes (one is all sockets and socket wrenches).
-Dremel with the attachment pack
-Bosch oscillating saw
-4.5" angle grinder
-extension cord (my rig has an outlet)
-duffel bag with extra clothes, ax, shovel, chains, tow straps, etc...
-fluids (PS, brake, coolant, windshield washer, etc..)
-HiLift jack
-Battery powered drill and circular saw
-Drill bits, assorted hammers, and other assorted tools not in the tool boxes
I think that's it... For now... Hahaha