It's All Too Much: An Easy Plan for Living a Richer Life with Less Stuff, by Peter Walsh [CD AUDIOBOOK].
I first heard about Peter Walsh from Oprah's website, where he is her "clutter and organizing guru". Our library doesn't have his book, but they do have the audiobook. Now, I don't usually listen to audiobooks, since as a stay-at-home mom I don't have much of a commute. But I found it a refreshing change from listening to the radio while cooking and cleaning in the kitchen. And the book was inspiring, too - I got rid of a lot of unnecessary kitchen clutter while listening to the book. This would be a great book to listen to on headphones while cleaning the house.
Peter Walsh's approach is part organizer, part therapist. He deals with the physical aspects of clutter, walking you through each room in your house, with a definite plan of attack. But he also deals with the emotional aspects of why we hang on to junk. He also pays special attention to the relationships in a family - between spouses or partners - and how decluttering your home can affect your family, both positively and negatively. And he emphasizes that we should teach our children to have limits, that they should not acquire more "stuff" than they have the space for in their lives. One of the best books I have read on this subject.