From Sarah E. White at About.com, here are some more thoughts about de-stashing your life. I can’t bring myself to do it, honestly. I hope that you’re stronger than I am!
If you have more stash than you’re ever going to knit with (probably including some stuff you’d never wantto knit with — why, exactly, did I go through a lime green yarn buying frenzy a couple of years ago?) it can be a really good thing to get rid of some of it. Once you’ve sorted and evaluated what you want to keep and what you’d like to get rid of, you have a lot of options for how to destash your yarn and other knitting supplies.