I was thinking about a job opportunity that would involve a move recently and started to feel ridiculous when I realized how much of my apprehension had to do with all my stuff, much of which was boxed up and hadn't been touched for years. Then I read the Kondo Marie book and started doing it. An unexpected side benefit is you come to appreciate the possessions you do want to keep a lot more when you separate them out from ones you're keeping around "just in case" that you didn't really want.