Abstract: A card organizer for attaching cards such as business cards or computer disks to an office file folder has a flat single page holder with a plurality of pockets aligned vertically. Each pocket is constructed with a front and a back sheet, the front sheet having a plurality of horizontal rectangular slots to allow insertion of objects of extended width. The back sheet has a like number of arched tabs corresponding to the front sheet slots partially cut on the back sheet smaller in width than the corresponding slot on the front sheet, leaving the tab bottom attached to the rear sheet to form a bend line. The top of the tab is attached to the front sheet under a slot thereby forming a pocket with a pinching action between the tab and the back sheet. Tape on the back sheet is used to attach the holder to a file folder.