I am a Virgo and type-A personality with a Jewish mother [that means guilt without sex]
I have all of my operating manuals, resource materials, copies of parts ordered etc. in about 5 notebooks indexed A-Z
I also have a tool information notebook in the workshop with information on commonly used tools that require set ups. For example the router, table saw, band saw...this way it's handy if I need to make an adjustment.
Recently I needed to replace a steering pinion rod and gear for my John Deere riding mower.
I was able to quickly pull up the necessary information and then scream at the order person as the price went up 65% in 4 years!
My point though I have all the stuff orderly and easy to find. I even have some MSDS documents for some chemicals I keep on hand.
So...........how many of you simply toss your manuals and reference stuff behind the driver's seat in your truck?