Several years ago I had a shopping problem which led to the accumulation of a large debt and a large pile of stuff. The debt is long gone but I still have a lot of the stuff. Unfortunately (although at the time I thought it was fortunate) when I was shopping I lived overseas where there was lots of great stuff for dirt cheap. The money I spent got me a much larger pile of stuff than a similar amount of money would have purchased in the States.
Every so often I comb through the stuff and find more to toss. This time was especially productive and I filled my car for Goodwill. It is hard to think of all the use I could get out of that stuff but more important is the truth that I have too much to ever use and it doesn't offset the burden of having all that stuff lying around. Yes, I could have sold a lot of it because it was nice stuff in new condition, but it would have taken so much energy to do that, energy better used to move me forward.
I feel so much better, I have less clutter, and I can better organize what I want to keep because I can actually find it. Hurrah!