I have all of the Lush books (spotless, spotless 2, save, how to be comfy, speed clean - I think that's it). I love them. I don't use them religiously, but I always go to the index if I want to find something out and they've really become my quick reference guide. I have post-it flags in them and dog earred pages where I want to be able to refer quickly to the same page more often.