As for not leaving something out, my process is that as it comes off the bike it goes in the case. I just toss stuff in, and later arrange it to pack, but it doesn’t get laid down as it comes off, other than in the case.
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You could fall off a cliff and die.
You could get lost and die.
You could hit a tree and die.
OR YOU COULD STAY HOME AND FALL OFF THE COUCH AND DIE.