Welcome here, MaryKa! If you've got room for some drawer units, I've found that the cheap plastic three drawer units from Target work great for my stash. Sterilite also makes some that are sold at Walmart and are the same size as the ones at Target. The last time I bought some they were around $10 per unit. I use the narrower ones, not the wide ones because I find the weight of the fabric makes it easier to open the narrow units' drawers. I buy comic book boards from Amazon and cut them so that they will fit in lengthwise, then I wrap my fabric around them and stand them on their long sides. That way when I open the drawers I can see at a glance what I've got. I can fit 20-30 yards of fabric per drawer doing it this way. My drawer units fit under my cutting table which is pushed up against a wall to save space. If you don't put the wheels on them, you can stack them 2 high (6 drawers).
Rob.