i try to sign all of mine.i take pictures this last 15 yrs or so.and keep a journal of sorts.'i also put a mistake in each one.sometimes a block inside out-it's never noticable.sometimes a block out of place.when i tell people-and i dont tell everyone-that there's a mistake in their quilt-they spend hours searching for it!!:)
the idea came to me because the quilt is handmade and nothing should be perfect-that's god's job!:)