I looked at the KonMari method, and, uh, I need to make a lot of progress before I can even consider that! My goal is to get there. It may never happen, but I'm proceeding as if it can.
So. Tomorrow's assignment.
Identify your Hellmouth and spend twenty minutes on it!
Why, yes, I was a hardcore Buffy fan. Why do you ask?
Your Hellmouth is basically the spot that you swear can stay clean all of five minutes (if you're lucky) before all of the crap in your entire house just gets magnetically drawn to it. Coats, mail, purses, books, makeup -- you name it, you have it there in one big heap. And now you're going to attack the stack. Don't worry if you don't get it completely clean. The key is to just make a big dent in it. We'll come back to any unfinished bits later. And I don't mean (for example) your spare room. I mean the table by your front door, the chair next to your coat rack or (for me) the couch.
Once you do finally get the Hellmouth closed, your next task is going to be a daily one: The reset. Every day, take a few minutes to clean all of the junk off. Do not let it accumulate even one day. It must be gone -- put away or thrown out -- before you go to bed every night.
(Funny thing: Just as messy spots expand and take over your entire house if you ignore them, so will clean spots if you pay just a little attention to them. Today's flat surface was your first clean spot. Your Hellmouth will be the second!)