I embroider mine right on the back of the quilt before I put it together. Lots of cute patterns out there or I just write what I want on the quilt & put a border around it.
The least I put is my name & date. Now I put the name of the quilt on the bag that I make for it. If I have any leftovers, like a Dresden Plate, I applique that on the bag! I made my DH a 'Memory Quilt' of his Navy days & I put the navy insignia on the bag along with some Navy buttons!! Very cute!