I like it. I've had a few times where my yarn has sort of jumped out its holding container onto what may or may not be a very clean environment. One of my next projects will be made from white yarn, so hopefully these little loops will do their job!
And now I am off to do a little swatching and see if I'll need to buy a new needle for my next knitting project. I also just started the Aeolian Shawl from the recent Knitty and I'm making pretty good progress, though I've already done a little frogging.