The Life-Changing Magic of Tidying Up: The Japanese Art of Decluttering and Organizing - A Complete Summary. Japanese cleaning advisor Marie Kondo takes cleaning to an entirely new level, promising that you can appropriately arrange and improve your home once, without the need to repeat the process in the future. Most strategies support a room-by-room or little-by-little approach, which tells you how to pick away at your heaps of stuff until the end...