For me personally, I hope to always be using my fabric continuously and not necessarily storing or collecting it for years so I'm not sure my own concern would be the acid free for super long term storage but I would like it to stand on the shelf without bowing too much or bending too easily. And I'm with whoever it was who said save your money and spend it on fabric, haha..so I think I may keep looking for a free option..like boards from the fabric store, maybe. Not sure yet. Fortunately for me I don't have nearly as much fabric as most of you so whatever I do it won't be as intense at this point. So it's a good time for me to figure out a system. Right now i have mine in bins on a cube shelf from target. I admit it would be nice to have them on the shelf on boards so I don't have to dig through the bin each time to find what I want. But the other thing is I have LOTS of smaller pieces, fat quarters and the like and since I use mine so much I'm not sure it would be time efficient to wrap them so I'd probably keep them in the bins or stack them like some of you have. I don't know yet, too much to think about right now, lol. I might go with the ruler wrapping method some of you have talked about. I wonder if you can even stand them up on a shelf if you have enough to fill a shelf so they aren't falling over?