Joe’s talking about winding yarn into balls over here: QueerJoe’s Knitting Blog (If that link doesn’t work, try the link in my sidebar)
I love it when I read one of those ‘smack in the forehead’ great ideas on someone’s blog or on a listserv. He mentions that while winding yarn, he tucks the ball band in the last dozen or so loops around the end of the ball. I have always put the label in the center of the ball when I start winding it. But of course, as soon as I start knitting, I pull out the label. Putting the label on the outside of the ball means it stays with the yarn until it’s almost done. Great Idea.