Great thread. I enjoyed reading all the posts. I like to divide in August and in fact have started the process.
@Char has written truly excellent article on dividing daylilies, which you can find on this site. There is also a good article published by the National Arboretum.
http://www.usna.usda.gov/Garde...
I have tried the "two fork" method mentioned there with success. This year I will try Char's method.
I was surprised to find others get hot, sweaty, and dirty dividing daylilies. That has never happened to me