I keep my yarn in 4 rubbermaid bins - two large and two small. One of the smaller ones is designated as a "sock" bin, although I really don't have a lot of sock yarn.
Here's a couple of example of what the bins look like on the inside - not very exciting, I know. I have a lot of one/two skeins that I bought "just to try the yarn", then of course I didn't have a decent pattern for them. So they languish.
The only part of my stash that I didn't photograph is the "leftover basket", that has all of my leftover skeins from projects. I'm trying to decide what to do with that yarn...since I have a lot of Cascade 220 I'm thinking I'm going to try some sort of patchwork felting project...I just have to get over my dislike of felting first!