Here in Houston it typically remains hot until some time in October. The first fall fronts bring with them pleasant cooler temperatures which are perfect for working in the yard. It's also the best time for transplanting daylilies as our mild winters allow the plants to continue growing and establishing their root systems for the coming season.
Every year I take vacation from my day job to accomplish all my fall daylily projects. As in everything I do, I'm probably overly organized but I find it helps me get more done in a shorter amount of time. Prior to the start of my time off I prepare a project list of the individual tasks in the order I plan to do them.
I start by listing the main recurring tasks such as retiring seedlings from the evaluation beds, transplanting the new keeper seedlings into the evaluation beds, removing older breeding daylilies and replacing them with new daylilies, and potting up the removals for my yard sale. These are things I do every year.
Then I add any special projects. These could include tilling an established bed to add ammendments, adding a bed, or reorganizing an existing bed.
The final part of the project list preparation is to add in any needed prerequisites such as getting materials needed for each project. I add these to the list to remind me to get them prior to starting each individual task.
Of course I seldom perform all the tasks in the listed order but it still helps me stay on track. With limited time off available I need to maximize my efforts.