I have a big wheeled travel duffle full of sock and baby-weight, fingering yarns, mostly superwashed. Two suitcases full to overflowing of acrylic yarn, which I only use for things that I know will get a lot of washing. And then there are the cotton threads and laceweight wool and silk-wool combinations....and yarn bought for weaving....
But I did find the nice yarn I was using to knit some mitts once upon a time before our last move, and the partly knitt mitt with it that got packed away three years ago...maybe I'll finish it...