When you go to a repository, first thing you look is a README. I realized this might be the case for some of the local folders (since I am currently re-organizing). So I've defined a simple concept to keep track what's happening on a foler. The rules are simple, just create a dotfile (so it would be hidden) under any directory you feel like needs explanation: .folder-README. Afterwards add a simple check like following to your shell configuration (for me it is .
If you're working on multiple computers/servers, managing your personal config files is a hard task. And as a sysadmin, I need my settings to be as global as possible. Many people are uploading their dotfiles under GitHub or some other public place. This has downsides, at least for me, since one can easily have private information embedded inside these files. Some people synchronizes these files to cloud services like Dropbox.