A one-piece molded plastic computer workplace organizer can be screwed to a baseplane such as a pull-out keyboard shelf of a computer desk. A mouse pad is located to the front of the organizer unit which provides a passageway for retaining the mouse cord in place so as to overcome the common problem of the mouse unit working its way to the rear and falling off the shelf edge, especially when the shelf is being pulled out. Storage for several 31/2" diskettes is provided with asymmetrical bistable support positioning: a nearly upright rearwardly-inclined working position and a low profile forwardly-inclined storage position. With the organizer mounted on the pull-out keyboard shelf, upright diskettes will be automatically flipped forward to the low profile position by the shelf edge for storage under the desk counter top when the shelf is pushed back into the storage position. The organizer also provides a tray for pens and pencils, a holder for page-by-page dispensing of an adhesive note pad, a compartment for small items such as paper clips, and a support channel along the rear for business cards or the like.