Last weekend I showed my friend how to use the acid free boards from the Comic Book store. She has been folding all week and stacking in tall bookshelves. We bought light grey heavy window vinyl and attached it with Velcro. Keeps out dust and UV rays. Took 6 HUGE plastic bins to fill one bookcase. It is giving her so much more room,it's amazing how much less room fabric takes up when it is folded on these bolts.