I thought I’d share one method I sometimes employ for keeping track of my yarn labels.
First I wind my ball of yarn as usual:
Then I fold my label so that its smaller than the width of the center of my yarn ball, and then hold this over that center pillar as I pull the yarn ball off the winder. This leaves the label inside the yarn ball.
If you also pick up that center pull end and put it inside the folded label, it makes it fairly easy to find that center pull for later, although this does end up removing your label from inside your yarn ball once you start working it.