What do you include on the label? Here are the basics I always have:
Brief description of the why/how of the quilt. That is, who is it for? Why did you make it? Was it inspired by anything in particular?
Pattern credit or original design.
Materials in the quilt - batting and fabric and thread. (Are they 100% cotton or otherwise? Also brand of batting.)
Date the quilt was completed.
It may seem like a lot, but it isn't too bad. This is what one example looks like.
My preference is to print my label out on the special fabric that can go through the printer. That way I can have it smaller. At one point I used to print the label out on paper and trace it. That was a lot of work! Sometimes it is quick and easy, some notes on a piece of fabric and sewn down. My favourite product for labels is Printed Treasures. It isn't cheap, but I can get 3-4 labels on a sheet, making it more economical. And I've learned, the label looks better if you put it on before you wash the quilt because the Printed Treasures fabric shrinks differently than my quilts.
One thing I was taught early on in my career is to sign my quilts in a secret spot. This is especially a good idea when you are gifting a quilt. Labels can be removed and quilts stolen. For family in nursing homes, kids in dorms or camp, or anywhere there is common access having a secret little spot for a label is a way to identify the quilt if the label gets removed. I've seen people actually make their label before quilting and it is a permanent part of the quilt. Even silkscreening a panel with it and sewing it into the backing! If that isn't your speed, simple sign your name on the inside of the binding. Be consistent on which corner you do it, like lower left. If a label ever gets removed and ownership is contested you can undo a few stitches and your name is visible.
When I updated my goals the other day I should have added 'Making Labels for All the Quilts' to the list. Definitely need that on the list.