The Swiss Army knife will work as a tire lever in a pinch.
I can adjust my derailleur stops with it.
With pliers, I can tighten or loosen some bolts if needed.
I've found rope, string, or even wire beside the road that I've cut with it... for miscellaneous needs.
Prying open smashed bungee strap ends.
If you're riding sewups, you can cut the stitches.
I regularly use it to pick glass out of my tires, or probe the bottom of holes in the tread with it. And, have used it to extract those pesky radial tire wires.
Resize a boot or patch.

And, it can always serve as a can opener or bottle opener if I ever need it.

As I've been experimenting with a post-pump, one Allen wrench can be handy.