I have labeled most of my quilts. I do find it annoying just because I finished the project and don't want to take the time to add a label. My quilting teacher was adamant about labeling. She said your name, date and where you live. I've never included where I live. I must admit that the ones I have not labeled I do regret not doing so. Some of my labels are sewn on, others just "signed" in permanent marker on the back in a corner.