A multitool is a necessity, but Leatherman tools are so ludicrously expensive that it’s insulting. Amazon has a great one by Wetols, that has lots of options, is built out of heavy duty steel, has an easy blade locking mechanism, a case with driver bits, and even has the blades on the outside, so you don’t have to open it to use one.

Easily the best multitool I’ve ever owned, and it is only about $19.