here is what i do. i don't use cards to store my fabric. i use scrap booking bins to store and keep out of sun light and dust. always using your 50% off coupon when purchasing the bins of course :-)
another resource for plastic bins is craigslist. i have found some really nice and tall one and i wash them down good even when they look like new. for my FQs i use the shoe box style bin and usually you can get those for 99 cents at any craft store. hope this helps and good luck with your organization.