Allegedly, on or about 19 May 2017, William Mattison sent:
After groping through papers in a moving box, I found the user's guide for the motherboard. Amazing: something I kept actually proved useful!
When space permitted, I'd ziplock bag things like that, and jam them into the PC case, ready for the next hiccup. Nine times out of ten that I might fix a doozy of a problem in a PC it involved dragging the box out and opening it, and the things I might need to read are waiting.