It might help some people. Me, I don't have too much trouble letting things go after a while. I am still emotionally attached to some items, but those are pretty organized. I just got rid of maybe 8 pairs of dressier shoes that I thought I might need to wear again someday. Some things it takes longer for me to let go of, but I eventually do.

Some people like clutter, and I've come to realize that if it's not hurting them, then it's no big deal.