You still get to do your vacation post-mortem. The vacation post-mortem, or "trip autopsy" as some Redditors call it, is a thorough cataloguing of everything you packed, everywhere you went, and everyone you traveled with — basically everything that worked and everything that didn't, and why. But when one commenter mentioned the power of lists — "Make lists of everything packed and evaluate it at the end, was everything used?" If you don't review how that stuff worked, you don't know if you need it next time," one Redditor said. If it was a group trip, you can look back and identify what worked between you all and what didn't.