A great question. Most of us just 'play' with daylily crosses, it is just a hobby. (We will not be out there competing with those names we all know, whose daylilies we all love.) On the other hand, I read a great article in the daylily journal this past year by a hybridizer who calls himself the 'accidental hybridizer' ... started out like many of us, as a hobby and for fun... then it sort of took over his life.
(Never going to happen to us, right?
)
I have to be careful to restrict my 'play time' though... I do have higher than 50% results, maybe because being in a cooler area, I don't have to worry about time of day or fertility dropping off above a certain temperature. And I don't want to 'not' grow the seeds (1000 new seedlings went into the ground this year), so I can't do too many crosses or there would be no room.
I just tag with the card-on-string (but after I write the tag, I seal it with packing tape on both sides to 'weather-proof' the tags). Sort of like DIY lamination.