I label all of my quilts. If it's for no one specific I use a pigma pen and sign my name, city, and date finished. If I made it in a class, that's included too. If it's for someone particular I include their name. I even went back and wrote my grandmother and mother's names on quilts they made years ago so my family would know who made them. I have one quilt that someone in my husband's family made but have no idea who.