Organizing craft supplies?

I just inherited a huge box of old yarn, stitching wool, embroidery floss, needles, etc. The crafter in me was giddy, but the organizer in me cringed. I have totes and some rather rickety plastic drawers housing the craft stuff. It sits next to my bedroom door and I had to force the door open tonight because the drawers are buckling. This cache is almost 6 feet high now. I have to find a way to store and organize this craft windfall before it's a landslide! Any ideas? How do you organize your stuff?

Erin