Cable needle holder in action
Neat! And it works when it's too warm to wear a sweater (which is where I usually tuck it, through several stitches, when I'm knitting something cabled).
(I need to reduce the number of browser windows I have open, so be prepared for a deluge of "Found on Flickr" posts that I haven't gotten around to. I don't really have time now, but, well, I need the memory.)
Update: PS: There's a tutorial!