Well, first it was stash. I started knitting and thought all you "old time" knitters were crazy for having so much yarn. While my stash isn't huge, it does take up 4 drawers in a pretty hefty bin-style drawer set now.
Even so, I was very good about starting a project and finishing it before starting a new one.
Then I started doing more knitting in public, so I had more complicated projects for home, and easier "travel" projects for taking with me. Then someone would ask for something or there's be a birthday or other giving occasion....and soon I had 3-4 WIP's going at any given time.
But all those stories of UFO's hidden away...that just seemed too weird. Until today.
Yes, I cleaned out those 4 bins today, and found not only a whole bunch of missing needles....but the projects they were in...about 6 projects I'd forgotten about.
So...now I understand how this hobby can take on a life of its own!! Now all I need to do is get organized with stuff I'm waiting to cast on and stuff I need to finish!