Similar to your little book, I have a personal wiki in a Git repository which basically functions for me as an external memory--if I find a solution to a problem that keeps coming up, or write a particularly useful snippet of code, I put it on the appropriate page so I can remember it again later. (When I say 'external memory' I really mean it--in addition to pages like Snippets:Bash I also have things like LifeSkills:SuitcasePackingList.)
Something that worries me is: what if I work for a company that decides that everything I've written on their time belongs to them? If I had all of this in my head there would be no question about it, but writing it down introduces questions of copyright. Should this ever happen it would basically be the equivalent of losing a chunk of my brain, which is a bit of an alarming prospect.
I work for a company that decides that everything I've written belongs to them. Note that I did not include the phrase "on their time." I have to get explicit waivers for any project I want to work on on my own time. It is more than a little disconcerting. I'm pretty sure they technically claim ownership of this comment.
Something that worries me is: what if I work for a company that decides that everything I've written on their time belongs to them? If I had all of this in my head there would be no question about it, but writing it down introduces questions of copyright. Should this ever happen it would basically be the equivalent of losing a chunk of my brain, which is a bit of an alarming prospect.