I carry a multitool and AAA for around town...multitool is to cut open bag of trail mix while I wait for AAA 
For road trips, I still carry AAA but also a Tekton 3/8" socket set (SAE + Metric 6-pts in standard + deep) in a blow-molded case that fits perfectly in tuffy box, Knipex Cobra pliers and Knipex Pliers Wrench.
There's probably a lot I can't do with only those tools...but so far, my plan is preventative maintenance and be in good shape to walk out if needed

For road trips, I still carry AAA but also a Tekton 3/8" socket set (SAE + Metric 6-pts in standard + deep) in a blow-molded case that fits perfectly in tuffy box, Knipex Cobra pliers and Knipex Pliers Wrench.
There's probably a lot I can't do with only those tools...but so far, my plan is preventative maintenance and be in good shape to walk out if needed
