I think back in the old days, I maybe had 100# in the trunk.
Just for kicks though this is what I have in the car in the winter: My duffle with various meds, cough drops, tire guage, band aids, tooth brush and paste, shaver, umbrella, nook, charging cables for phone etc., batteries, flash lights, matches, dental flossers, extra glasses, ear planes for flying, and can’t remember what all else without looking, but it is my go bag and with me all the time. Then I have my snow boots, snowmobile suit, ski mask, snowmobile gloves, and a more worn hooded jacket. Then in the trunk I’ve got my tool box, paper towels, entrenching tool, rope, first aid kit, bungee cords, oil, power steering fluid, serpentine belt, spare wiper blades, and maybe some other stuff. Always carry a couple check books for different accounts, plus quarters for the car wash or meter, CDs, oh and a 12 pack of coke. Just seems like stuff I might need.