Abstract: An expandable storage device is provided including a first panel and a second panel, along with one or more mechanisms for adjusting the size of a spine therebetween. By one approach, the storage device includes a first panel having a first panel spine portion, a second panel having a second panel spine portion, and one or more actuators, where the first panel spine portion and the second panel spine portion are configured to form a spine of the device having an adjustable width. The one or more actuators may be configured to move between an unlocked and a locked configuration to move the first panel or the second panel relative to one another and selectively retain the spine of the device at variety of adjustable widths. So configured, the device may accommodate an increasing or decreasing number of articles, sheets, or other items placed therein.

Abstract: One piece, molded looseleaf books adapted to hold paper sheets with punched holes therein, certain of said books having a spine with front and rear walls and a back wall connected at its longitudinal edges to the front and rear walls by integrally molded living hinges; a rear cover panel and a front cover panel respectively connected to said front and rear walls by a living hinge, a plurality of tubular posts mounted on the rear wall and extending toward the front wall, and a plurality of plugs respectively comprising a stem mounted on the front wall and a head sized and positioned to slidably and frictionally seat in each tubular post when the front and rear walls were pivoted to be substantially parallel; and others of said books being two piece, molded books without a spine between the front and rear cover panels, which have an integrally molded strip connected to each panel by a living hinge, a plurality of posts on the lower strip, and post-penetrated holes on the upper strip.