Since I"ve vowed not to have large stashes, I store my fabric in totes. I don't want to look studio, I just want to use them. If I ever see a point in time where fabric is fading then I think I need to stop buying and just start sewing. I know it's good to think about long term, but I am not a person who worries over these types of things. For a suggestion, maybe put on old sheet over all your folded fabrics to avoid light and dusk when you don't need to get to them. I see many sewing rooms with lots of open shelves packed with a beautiful display of fabric. I think it looks amazing, but if I had that much I would have to just cover those shelves with something when fabric is not in use.