I've been trying to clean up the mess in my house using the KonMari Method. It's life-changing!!!! The creator (Marie Kondo) of it wrote a book titled:
The Life-Changing Magic of Tidying Up: The Japanese Art of Decluttering and Organizing
Her method involves decluttering in one swoop, which I don't think I can do. I'm going to try to do her method over a month or so. I'm just dreading the paperwork:(