If you have an itchy clothing label that you'd like to be rid of but you don't want to risk damaging the seam with scissors, or you want to keep the tag on but decrease the itch factor there is an excellent solution over at parenting blog Parent Hacks:
Why did I never think of this before hacking off a bunch of my daughter's shirt tags? (I inevitably break the thread of the neck and a hole is born.) I got a little piece of iron-on no-sew hemming tape and tacked the tag down. No itching and no chance to ruin the shirt with my over-zealous tag removal.
A tiny bit of no-sew tape, an iron, and no more scratchy tags wiggling about your shirts. Photo by Lin Pernille.