It feels SO cathartic to purge my unnecessary stuff!!
I'm not the problem in my house, tho. My hubs is a bit of a pack-rat, so it's hard for him to give up things. For example, we have the 1969 Encyclopedia Brittanica set his mom got when she graduated high school. He won't get rid of it.... Egads, man! I purge things when he's at work or not looking- things I know he'll never need/use/miss. We have two sets of couches (one set is in the sun room and gathers junk) because we "might need it on day." It's maddening.

BUT- I do purge things and donate regularly to charities (once a month I have them come pick up some boxes).

I've been following this blog lately (and on FB) and I'm leaning more towards his thinking. We have too much stuff and are super-consumers in America. I want to live simpler. It's the 100 Thing Challenge. The challenge is to only have 100 things in your home at one time. When something comes in, something goes out. Trying to get people to scale back what they have and need.
http://guynameddave.com/about-the-100-thing-challenge/