[thirdtruck]

My proposition: Anything worth referencing later is worth filing properly.

That may mean transcribing instructions into a stand-alone checklist, writing up formal user stories, or the like. However, those acts also clear away a lot of cruft that can otherwise make it nigh-impossible to find the needed info. I've run many a Gmail search, only to find that a valuable email was buried under innumerable "Not quite what I wanted" ones.

[boracay]

For a lot of internal data it's having and using the appropriate systems in the first place. It's like VCS. You don't e-mail someone code anymore. You make a branch or whatever and then reference that in your communication.