penlight, 6 in 1 screwdriver, bungees, tape, swiss army knife, wood matches in protective can, trail mix, extra drinking water ,overnight bag with toiletries bag, small precision tool set, blanket, spare cash and coins, little notebook for phone numbers and such, spare socks, first aid kit and medicines, whistle, map , book or magazine to read in case of breakdown or layover, spare batteries, any tool that can work for minor repairs. bag of trailer lights, airline hose with accessories (saved many a road call.)
i carried all this stuff ( and more ) in feeder as my meet points were 240 miles one way usually in the middle of nowhere.