I usually use a piece of the backing fabric for the label. I name the quilt (usually the name of the pattern), my name, who I made it for, my town and state, and the date. I sometimes add scripture or the phrase "made with love and bound in prayer." I put a label of every quilt I make except the baby quilts, which will get washed to death ... I wasn't sure a label would hold up. I have used a permanent marker on the early quilts I made; now I embroider all my labels.