welp, hypercracker is going on the list that I bring. I just carry a couple of fiber fixes and enough to change a few flats. The standard grease, lube, etc. of course as well. A good pump is just straight up peace of mind.
I give my bike a look over and clean up every few days. If a cable starts fraying I know about it. Still, very few issues every few thousand miles. . . I trust my equipment

and improvisation is often key to fixing odd problems.