Ravelry is a very good website for bartering knitting stuff you aren't going to use. Many moons ago I accidentally bought a lonely skein of sock yarn. Not enough to do anything with, really. So, I listed it on my Trade/Sell page on Ravelry. Memoe33 took me up on it and sent me this in trade!
I especially like these stitch markers:
and a closup of the pattern tamers (cause I can)
So I got a skein of yarn outta my stash that I had no idea what to do with, and got these lovely items that I can actually use. That's a WIN in my book!