Just get me home!

Driveline blew out of a 58 ford pickup leaving one ujoint cap in the yoke, and the other long gone.
Only had two tools in the whole truck and I found them under the seat ( a half inch open end wrench, and a Craftsman 5/8 socket) PERFECT.
The half inch wrench for the ujoint strap bolts, and the 5/8 short socket made a temporary ujoint cap and got her home 25 miles.

On my way back home from Phoenix AZ in my Dart with the original radiator and the top tank blew off about half way around the top seam. (I always have water with me)
I pulled the thermostat, beat the tank back down with a tire iron and used an entire tube of red RTV to seal the gaps and left the cap off the radiator to get the 45 miles back home.

That's just two of them.