slip joint pliers, needle nose pliers, large flathead, small flathead, phillips, 5 extra lug nuts, a few feet of bailing wire, roll of electrical tape, small but bright pocket flashlight.
AAA and cell phone would be ideal but remember cell phones dont work everywhere and AAA can be a real pain in the *** to deal with in remote areas so a paper map and a good pair of walkin shoes are the backup plan haha.
all that was mentioned and and a Harbor Freight LED Red and or white flashlight.
Extra headlight and taillite bulbs. Don't forget your AAA, Tow, or Insurance phone numbers and Member Numbers on your Contacts list on your phone.
I glued 2 chunks of 2" foam inside a brief case. Ignition parts, bulbs, carb kit & a kalillion small parts are "sandwiched" safely in it, to carry along. At home, it lives under my GORILLA work bench. Bill W.
I carry a small tool box with the necessary end wrenches and sockets, screw drivers, pliers, crescent, ignition parts, fan belt and light bulbs. In a milk crate I carry a fire extinguisher, jack, crank/lug wrench, quart of oil, gallon of water, and most important of all is a full roll of toilet paper in a zip lock bag. Also my AAA card.
A good preventative maintenance plan eliminates most of the supprises. Most of my breakdowns have been fore warned by things I have neglected to check up on. In addition to the small parts listed, a rear axle key and shim.....
Ask me how I know.