Abstract: Certain embodiments of the present invention provide an apparatus for a portable electronic device case including: a sheath portion capable of sheathing a portable electronic device, wherein the sheath portion includes at least one window that allows a user to interact with the portable electronic device; and a cord-winding portion capable of being integrated with the sheath portion, the cord-winding portion capable of receiving a cord portion of an accessory for the portable electronic device, wherein the cord-winding portion is capable of maintaining the cord portion in a substantially stable and a substantially tangle-free disposition, and wherein the user may continue interaction with the portable electronic device while the cord portion is stored in the cord-winding portion. Thus, cord storage encasement of the electronic device, and interaction with electronic devices are achieved in a convenient manner, which simplifies rather than complicates portable electronic device operation.

Abstract: A quick-change adapter for rotary devices such as power drills comprises a shaft that can be inserted in a chuck of the powered rotary tool. The shaft is coupled to and is coaxial with a tool holder that inlcudes means for retaining a tool and means for driving the tool. The retaining means typically involve one or more spring-loaded balls that engage a groove or detent in the tool. The driving means include a shape that is not circular, to engage a corresponding shape on the tool to apply torque, and a surface having a component that is substantially perpendicular to the axis of the adapter to enable the application of force in an axial direction. Tools such as drills, screw drivers, and the like are rendered usable with the adapter by receiving a shaft to fit the adapter and couple torque from the adapter, a groove or detent to fit the retaining means, and a shoulder or the like to apply axial thrust.