I use the post-it note half inch flags, my coil starts with Tippett then ends with butt once I wrap the butt I take a posti-it flag and double it/pinch and take a fine tip sharpie to mark it. Keep one or two leaders in my fly box. No issues storing there. See if that works.
http://www.post-it.com/wps/portal/3M...glF0B9Q95J0Sbl