Be sure to have some basic tools on hand for emergencies. There are many emergency tool kits that come already packaged that you can throw in the car and be ready for emergencies.
Various tools for emergencies while out on the road are paramount. Jumper cables, tow strap, shovel, and basic hand tools are a must.
Having the right tool for the job is a necessity, but many tools are multi-functional which can save space and money.
My personal favorite is the multitool, more commonly known as a Leatherman or Gerber.
This little tool is like a mega Swiss Army knife. It has pliers, screwdrivers, knives, and much more all folded in one little piece. These are great to keep in your glove compartment, camping kits, and emergency gear.