|For most of you, this will be a complete waste of time. If, however, there is anyone as clueless as I am, maybe this will be of help. If using fray check on your buttonhole, make sure every last bit of tailor's chalk has been removed first. Otherwise, you, like me, will have a whole set of unintentionally highlighted buttonholes. I actually thought this might happen but couldn't get all of the chalk out of the threads on the buttonhole. Instead of making the extra effort, I said, "Oh well, it will probably come out with dry cleaning." I'm blaming it on a late night sewing mental lapse.