My stash isn't too large (but what do you consider large?) I store all my fat quarters, which I have 2 clear plastic totes full with the little stringy thingy on them still. Got enough of those to make at least 6 to 8 king size quilts, maybe more. Remenants (sp)I have in a filing cabinet, still with the size & price marked on them. Lots of clear bigger totes with 3 or more yards of fabric. AND a trunk that I have full of fabric. All my fabric in containers have tissue paper with bay leaves wrapped up to keep those little nasty moths away...till I use it up.
Do I still buy fabric? You bet! Do I hide it? Ummmm only till I take it upstairs to my sewing room...lol. Hubby doesn't go there.