The iron-on stuff I can print and put on clothes isn't permanent by any means, so I think I used it like twice. That said, it's attached so it might be permanent.
There's a thread on the labeling requirements at Fashion Incubator:
http://fashion-incubator.com/phpbb/viewtopic.php?t=3492&postdays=0&postorder=asc&start=0I don't have time to finagle a label that I can add unique info to with a Sharpie (one of the suggestions I got), or to do the paperwork; I'm spread about as thin with my shop and my kids' homeschooling as I can comfortably be without dropping balls. It's all the more irritating because the garments I dye already COME WITH their own labels and the dyeing doesn't change the care information in any way, nor do the dyes contain lead or phthalates, so for me the labeling is a complete waste of time. :-(