I have corraled my entire yarn stash:
I guess it could be worse.
From top to bottom:
Roving, spindles, yarn baller, niddy noddy
Neutral wools and mohairs
Various larger lots of wool, mostly purples (some Patons grey, a bunch of Karabella)
Novelties and non-wools
More wools, including most of my hand-dyed, plus some cotton
I'm down to one tub of non-natural fibers, and I hope to keep it that way. Even my projects are all in these buckets (a tank top, a scarf, a sock, an arm warmer, I'm not sure what else). It's about 5'7" tall, all stacked up. Also note the motor oil in the bottom right hand corner, with which I grease my spinning wheel.