Someone has requested from me a leather accordion-style file folder.  The part I'm pondering most over is material for the internal dividers.  I don't want to use leather just from a practical standpoint.  The request is for 12 folder slots, and all that leather I feel will weigh too much and/or be too cumbersome.  Ideally I'd like a natural material, i.e. not plastic.  I'm thinking canvas, but wondering if it will end up being too floppy.  Cardboard is also off the table because it will just en