Abstract: A printable sheet including one or more envelope assemblies formed thereon, each having a central body panel, an end flap, a pair of opposing top and bottom panels, a business card removably attached and incorporated into the bottom panel, and a retaining flap. The sheet is capable of being placed in a printer to have images and/or indicia printed on the envelope assemblies. Each envelope assembly is capable can be removed from the printable sheet and folded along weakened lines, and adhered to itself to form a secure sleeve or envelope for holding various items. Each envelope has a retaining flap on the open end that can be tucked into the envelope after insertion of its contents in order to retain the contents, which could either be used or removed if desired. The envelope could be designed to readily hold business card compact discs. The business card can be subsequently separated by the user from the formed envelope.

Abstract: A sheet retaining device such as a folder or a binder that incorporates a corner lock for preventing papers from dislodging therefrom. The sheet retaining device has a front cover and a back cover. Each of the covers has a top edge, a bottom edge, an outer edge, and an inner edge. A first primary flap is connected to the back cover along the outer edge and the bottom edge thereof to form a pocket that is adapted to receive one or more pieces of sheet material. A secondary flap is connected to the back cover along the inner edge and the top edge thereof to form a corner lock adapted to retain corner of sheet material retained in the sleeves. Accordingly, when a piece of sheet material is retained in the pocket, the secondary flap acts as a corner lock on the free corner of the sheet material, tending to retain this free corner and the sheet material in the pocket, even if the sheet retaining device is turned upside down or sideways.

Abstract: A printable sheet including one or more envelope assemblies formed thereon, each having a central body panel, an end flap, a pair of opposing top and bottom panels, a business card removably attached and incorporated into the bottom panel, and a retaining flap. The sheet is capable of being placed in a printer to have images and/or indicia printed on the envelope assemblies. Each envelope assembly is capable can be removed from the printable sheet and folded along weakened lines, and adhered to itself to form a secure sleeve or envelope for holding various items. Each envelope has a retaining flap on the open end that can be tucked into the envelope after insertion of its contents in order to retain the contents, which could either be used or removed if desired. The envelope could be designed to readily hold business card compact discs. The business card can be subsequently separated by the user from the formed envelope.