I label my quilts. The quilt, recipient and occasion dictates how creative I am. A quilt I make for a commission, donation or one I don't know where will go gets a ( basic) label: name of quilt, my name, City, State, date ( at least the year) fiber content and care instructions.
If it's a personal quilt ( special occasion, special person, gift ) I put a personal label. Some are long and heartfelt, some are a bit simpler. I often design my labels on the computer and print them onto ( PDF- prepared for dyeing) fabrics. Sometimes I use permanent micron pens and write my own.