I keep mine in banker's boxes inside plastic bags or in plastic bins. I can lift the banker's boxes, they are cheap, and I've had no trouble with them. But I have a tip for you, something that works well for me. I sort my fabric by colors on the color wheel (so I do include yellow-orange, etc.), one color per box or bin, and then I stand the fabric up in the box so that I see the folded edge of each fabric. Another way to say that would be that I stand the banker's box on it's end, and put fabric in it nicely folded and with the crease out and visible, then put the next fabric on top of that, etc. That way, I can go to the box with the color I need and see what is in there at a glance. I have my shelves labeled with the names of colors so I know right where to look.