A lot of people I know and work with don't have the very basic skills needed to change a tire or the like. It is a huge cost and time savings when you can fix or change a tire on the road. Below is a short video of what I keep in my trunk in case I get a nail in one of mine.
Not having basic tools and skills can make a bad day even worse. Learn the simple skills so you can spend your hard earned money on other things.