recently, i've been printing out photos in 4r and s8r, and this has created the problem of their storage. i understand that there are some types of photo albums--such as the magnetic ones, and those that dont' use acid-free paper--which are inimicable to the preservation of photos. does anyone have any recommendations for products, available here in singapore, that won't damage your photos? i'm looking for albums, binders, portfolios, cases, boxes, etc. thanks in advance!