This is the key point - capturing, organizing and retrieving notes has a cost. And I find myself always paying for notes out of my "just do it" budget. Especially when virtually all of the things I'm working on (notebooks, libraries, applications, planning documents) are themselves a form of writing, having yet another place to scatter my thoughts is not helpful at all. It's much more productive to take that thought and put it directly into the project documentation where everyone can benefit. More README, less journal.