Writer, Confess Thy Eccentricities!

Just about all writers have some kind of eccentricity to their work habits, I believe---some quirk that works for them. Mine is that I have to more or less fill up every surface of the folder holding the print-out of my novel-in-progress with words. In the photo above, it's the folder for Borne, bowed under the weight and confusion of notes. There's no logic to writing them down on the folder, except that there's this mental construct in my mind. The work must be surrounded by related thoughts and ideas scrawled in a kind of protective spell. These words keep the work safe---keep bad influences out and let the work marinate and reach maturity under that protection of that binding. It makes no sense at all, but it's the only magic I engage in, and a blank folder surface fills me with a feeling of unease.So, tell me, writers reading this...what're your eccentricities?