I carry a basic tool kit to do some work if needed carry 10 L of water rope race tape and a few hose clamps hoses and belts air and fuel filters and oil that's about it. I remember in my old (dare I say it) Hilux I burst a bottom radiator hose and the other people their were laughing at me (they were [patrol and paj owners) I then preceded to take it off replace it fill it with water and fill the rest up with creek water all before they offered a hand then I drove out with a large smile on my face when I found one of them bogged and I pulled them out haha.
An old boy taught me to live by the 6 P's

Prior Preparation Prevents Piss Poor Performance