Instruction Books
I have several older machines (my baby was made in the 1980s) - and I have glanced at the instructions now and then.
I recently needed to know something or other and was forced to actually READ most of the books in an attempt to find out the answers to something - which was not in the books, by the way, but I did learn a LOT of other information along the way.
So, painful and "boring" as actually reading the instruction books is - from cover to cover - it actually is worth the effort.
(I am only talking about pre-computer machines.)
I have mixed emotions about my new found knowledge. Happy to have learned a few things. Why did I now know them sooner?
Guess a lot of that was based on "the need (desire) to know".