Abstract: A central straddle-sheet section (1) made of fiber or other foldable material is provided with a pocket section (2 and 3) at each end. Each pocket section (2 and 3) is sufficiently narrow not to overlap the other when both are folded onto the central straddle-sheet section (1) at fold lines (10 and 11) where the pocket sections (2 and 3) are joined to the central straddle-sheet section (1). When the straddle pack organizer is straddled over a chair (18) or other surface, the pockets (6 and 8) in the pocket sections (2and 3) hang or lay to each side of the chair to form easily-reachable pockets for holding folders, notebooks and other materials. A carrying case is formed when the pockets are folded over the central straddle-sheet section (1) and the central straddle-sheet section (1) then is folded at a central fold line (12) between the folded pocket sections (2 and 3).