Bug out bag?
Simple.
Have a pack ready to go on a 3 day backpacking trip at a moment’s notice. Tailor to geography, region, season, and hostility.
How often do you inventory it, check flashlight batteries, expiration dates on meds?
I inventory mine on the 1st of every month.
But I think the topic deserves a thread of it's own, so we can hear what people put in theirs, and how they manage it.
/johnny