I guess, much like some others, I do both fall and spring clean up. I leave the seed heads for the birds, too, but daylilies I take most of the dead foliage off of, leaves I leave (heh). I think I'm going to get some corn gluten this year and try it as a pre-emergent. I know Stormy uses it a lot, anyone else?
Leaves, leaves then more shredded wood mulch - maybe not until spring, dunno.
Juli, don't feel bad - I don't think anyone did much of anything this summer. It's just been awful.