The bag that I chose has a section made just especially for documents to keep them wrinkle free. It also has a laptop compartment, accessible from a top zipper so you don't have to open the whole thing up. Sean's pack also has one; so either of us could carry the laptop. We debated getting true backbacks or the sling/messenger style packs. Basically it came down to which one is easiest to access. The sling/messengers won. The strap can go over the shoulder, or be buckled tight around the waist. Thanks again for all the suggestions!