Funny, I've come to use the same system some time ago, but for general to-dos. I just use more readable filenames, with spaces instead of dashes and more complete sentences, and in the file content I put more detailed info and links do resources.

The great thing about this is that it's utterly portable. You can sync with Dropbox, explore with a file manager, zip and send by email, grep, open and edit with scripts... The possibilities are endless, and you don't have to install anything.