We'll admit it, we're certified fabric junkies. Because of this, we're always trying to figure out neat and interesting ways to store our hundreds (literally) of samples. We've found that this particular shoe box works perfectly for our collections. We can see the fabrics, the price is great, and it's designed to be stacked.
Granted, this is not how we use them (they're stacked accordingly on our desk - a desk that's impossible to photograph), but we still think this is an excellent way to store your fabrics.
We also take them to meet up with our interior design clients because they're so lightweight and easy to lug around. The price? $7.99 at The Container Store.