With this same attitude in mind, I have started to catalogue my stash. With no central area for doing my knitting, I also have no assigned area for my stash, so there are balls of yarn in ziploc bags all over the house! (sound familiar?!!) Consequently, it's very easy to forget exactly what I have.
This is where Ravelry comes in. Thank goodness for their stash page! I have decided to make a concerted effort to get my stash details and pictures online so that I can keep track of it all. Thankfully there's also a little section where you can write down exactly where that item is stored. Hurrah! No more hunting through all my hiding places looking for a needle (skein) in a haystack!