I know I should label my quilts better than I do, but I don't typically make a label unless I know in advance who it is going to. A lot of what I do doesn't have a home when I start other than "not for me or anyone I know".
I do name my quilts, some have better names than others. Usually it is a working name like "Purple Quilt" but sometimes they turn into things like "Winter Dreams of Summer Skies"
I do include a letter that has things like washing care, or that it has been washed once between me finishing it and then giving it to the other person. I always like to wash first in case something happens, like just a couple of months ago I found a small flaw in the huge extra large backing after the wash. I ended up having to applique a little patch over the broken threads but I'm glad it happened on my watch and I had the skills and extra fabric to fix it.
From my years working with engineers they always wanted to know things like how many pieces -- I try and answer that!