I have SO much de-cluttering to do. I think I'm going to pretend we're moving and throw or give away anything I don't want to have to PAY someone to move for me. That will be a challenge, I can tell you!
I still have too much stuff, even after moving halfway across country. There are so many little things I've kept just for sentimental reasons...silly little things like concert programs. At least they don't take up a whole lot of space. Also have tons of old journals. I haven't been completely faithful to those or I'd need a truck to move...but there are still quite a few. I've kept one off and on since before I could write. Honestly.
Books are still the bulk of things, though. I know I can always replace stuff like Agatha Christie, but it's taken me *years* to build up my collection o' books, so I have trouble letting any go.