"Not everybody can be organized!"
"Have you ever been to my office at work? It is VERY organized! There is a place for everything and everything is in it's place. It's just too hard at home to organize because nobody will help out!"
Does this sound like your house? Now that I'm older and wiser, I realize that I can't organize anybody but myself. However, I can teach you the skills to get yourself organized in hopes that one day your family will notice and, hopefully, follow your example. If not while they are living in your house, then later when they are on their own. Unfortunately, I didn't learn these skills early enough in my child rearing years because both of my kids are very disorganized.