Good list! ^^^
A decent multi-bit screwdriver with torx bits is what's in mine.
Throw in a roll of duct tap & a roll of electrical too. A pair of side cutters, & a pair of vise grips. Couple feet of hay wire. The lock-nut key for the custom wheels along with the socket that fits, & an extension if needed. Throw a $25.00 C/L torque wrench behind the seat. The wheel nuts on the factory wheels use a different size on my truck, so I have the socket for those in there, along with 5 of the factory wheel nuts. A $2.00 mini flashlight. A metal 35mm film canister (You youngsters can google that.) filled with some bearing grease.
A Waiter's corkscrew. Just because...
But I've had the pleasure of an orifficer of the law look under my hood recently, & he practically put his hand on it to look at the rest of the underhood. With a flashlight! Must of thought it was something to do with the pollution control or something. I'd tend to think that unless the cop owned a GMT400, with the same box, most of them don't know. What's life without playin' the odds? So until they release the hounds, it's pretty incognito!
I also carry a spare for every bulb on the truck in the glovebox.