A discussion there reminded me to mention a good habit taught by my buddy Eks: when you must look something up, write the information where you’ll see it the next time you need it.
So, for example, each of the van wheels sports its own tire-rotation schedule inside the cover. When it’s time to swap tires in early spring and late autumn, I pry the cover off, read where the tire should go, and do the deed. I write ’em down four or five years at a time, so there’s not much thinking involved.
The engine compartment has all the most-often-used wrench sizes and capacities.
I write the oil change & inspection info in the maintenance schedule booklet that came with the van, although after a decade that’s pretty much full up.