dealing with clutter starts with why you hold on to stuff. You can Craig's list and Ebay all you want, but if you don't deal with how it got there in the first place, you won't get any traction at all. However you got it ( garage sales, hoarding, just-in-case, I'll need it someday etc) is what you have to deal with, or you'll be back here next year with a whole new pile of stuff that you'll be wondering how to get rid of.