In the car I carry a two part five minute epoxy plunge dispenser and sand paper.
The edit feature was gone when I remembered you need something to hold tight what ever you are putting together with epoxy. I carry two small C clamps. This is for a quick fix of small things. Major repairs wait until I am home with a larger range of clamps.
"If you want to be famous, you must do something more badly than anybody in the entire world." Miroslav Tichư