Get the best results when you organize and declutter with methods that match your personality. Find the organization strategy that works best for you.
If you just want to get the junk out of your house right now, you don’t mind spending a lot of time on it, and you want to do it once and never have to do it again: Read The Life Changing Magic of Tidying Up and follow the directions.
If you really want a good system for cleaning and organizing your home, don’t mind something a little more complicated, and want to feel like someone kind is leading you through the process: Check out FlyLady.