Old learning, revisited. Your documentation should be WHERE you need it! Case in point, critical ports on a network switch, critical links in a patch panel, put labels in place so there’s no guesswork, no need to search out documentation. Haven’t done this yet, but really tempted to have a 3×5 card taped near the key area that has “things you really ought to know” written on it.
Does this replace the need to document elsewhere? Well, it is hard to read those labels on the front of the switch when you’re hundreds of miles away remotely connected. :(