Flex tape or other wet seal tape for hose repair.
Channel lock and a small mixed set of worm drive clamps.
Other things I don’t see mentioned: JB weld, RTV (silicone sealant), thread chasers, tire spoons, dialectric grease, all depends on the services you want to offer!
What else would a good actor do?
Sidenote: I think Face Off is a perfect embodiment of this sentiment. An objectively terrible movie with a monumentally dumb premise, and his acting is what takes it from unwatchable to downright fun.