Terri -- careful - collecting flowers and especially daylilies can be habit forming!
Yes, a map is very helpful! Also, putting the name of the plant on the blade of a plastic knife with a Sharpie marker, then putting it IN the ground with the daylily is a good idea. Daylilies need divided every few years - and you'll find that knife when you divide the plant - at least then you will know which plant it is, if all other tags get lost.