fabric. I think my fabric stash is bigger than my yarn stash (to keep it in perspective: my fabric fits in one of those medium size 21 gallon or so rubbermaid bins while my yarn stash, including my needles and wip's take up 3 drawers of one of those sterlite carts that you can pick up for about 16 bucks at walmart... i know, i need to get to a LYS soon!)
I don't really buy fabric for any reason other than i like it... then i try to figure out a quilt for various fabrics and then buy MORE fabric to coordinate for the printed fabric... then i lose patience with all the measuring and cutting and pick up my knitting needles instead
