I have an over the door shoe hanger that recently became my main organization. You can see it in my blog. Garage sale find = $1
One of those X frame folding craft bags that you see at Joann's etc hold my WIP by my Rocking chair in the living room. I usually have 3-4 projects in there, plus my tool bag, my needle roll, KP Options, and any patterns I am working off of, IK Mag, etc Gifted to me $0
The top drawer in one of those heavy duty rubbermaid 4 drawer deals holds roving, felting, dyes, etc. Plus the fun fur that I hardly ever use but keep because it becomes hand to trim with for a 6 yo dd... Also gifted $0
Then when I take things with me I use gift bags, Ikea puppet bags, or the drawstring pouches my babywearing wraps have come in. The little zip bags for baby shirts, shoes, blankets, etc make perfect yarn holders. I leave the skein in one of those, and my work lies free in the carrying bag. $0
Total Organizational Cost? 1 dollar. Woot.
But I have been knitting close to a year and I JUST got this organized recently.
And currently I have 3 WIP laying on my side table by my Swift and rocker.... Plus a half wrapped MBOY....