This still the best way I know to trace back the path I followed to remove screws from old devices. And to put them back.
Back in 70’s and 80’s, engineers spent all their energy to fit hardware in cases, but they had no problem in deciding how many screws to use.
It was like in the game of tetris: but they used screws to keep blocks together.
What is the best practice you are comfortable with? 🙂