Abstract: Included are embodiments of a system for monitoring device usage. The system may include a handheld device for performing an action, where the handheld device includes an engagement sensor and a computer that includes a processor and a memory component. The memory component stores logic that causes the computer to determine a minimum device engagement time of the handheld device. In some embodiments, the logic causes the computer to receive output data from the engagement sensor, where the output data includes an actual device engagement time, determine if the actual device engagement time is at least as long as the minimum device engagement time, and in response to determining that the actual device engagement time is at least as long as the minimum device engagement time, determine the action taken by the handheld device.

Abstract: A shaving demonstration apparatus having a rotatable support surface. A drive unit is operatively connected to the rotatable support surface. A fixture is spaced apart from the rotatable support surface. A first shaving razor has a first handle having a central longitudinal axis, said handle mounted to the fixture. A first blade cartridge unit is mounted to an end of the first handle, and rotates about a torsional rotation axis with respect to said handle, wherein the central longitudinal axis and the torsional rotational axis are generally parallel. The first blade cartridge unit contacts the rotatable support surface.

Abstract: Included are embodiments of a system for monitoring device usage. The system may include a handheld device for performing an action, where the handheld device includes an engagement sensor and a computer that includes a processor and a memory component. The memory component stores logic that causes the computer to determine a minimum device engagement time of the handheld device. In some embodiments, the logic causes the computer to receive output data from the engagement sensor, where the output data includes an actual device engagement time, determine if the actual device engagement time is at least as long as the minimum device engagement time, and in response to determining that the actual device engagement time is at least as long as the minimum device engagement time, determine the action taken by the handheld device.

Abstract: A shaving demonstration apparatus having a rotatable support surface. A drive unit is operatively connected to the rotatable support surface. A fixture is spaced apart from the rotatable support surface. A first shaving razor has a first handle mounted to the fixture. A first blade cartridge unit is mounted to an end of the first handle. The first blade cartridge unit contacts the rotatable support surface.

Abstract: A shaving demonstration apparatus having a rotatable support surface. A drive unit is operatively connected to the rotatable support surface. A fixture is spaced apart from the rotatable support surface. A first shaving razor has a first handle mounted to the fixture. A first blade cartridge unit is mounted to an end of the first handle. The first blade cartridge unit contacts the rotatable support surface.

Abstract: A shaving demonstration apparatus having a rotatable support surface. A drive unit is operatively connected to the rotatable support surface. A fixture is spaced apart from the rotatable support surface. A first shaving razor has a first handle mounted to the fixture. A first blade cartridge unit is mounted to an end of the first handle. The first blade cartridge unit contacts the rotatable support surface.

Abstract: A shaving demonstration apparatus having a rotatable support surface. A drive unit is operatively connected to the rotatable support surface. A fixture is spaced apart from the rotatable support surface. A first shaving razor has a first handle mounted to the fixture. A first blade cartridge unit is mounted to an end of the first handle. The first blade cartridge unit contacts the rotatable support surface.

Abstract: A shaving demonstration apparatus having a rotatable support surface. A drive unit is operatively connected to the rotatable support surface. A fixture is spaced apart from the rotatable support surface. A first shaving razor has a first handle having a central longitudinal axis, said handle mounted to the fixture. A first blade cartridge unit is mounted to an end of the first handle, and rotates about a torsional rotation axis with respect to said handle, wherein the central longitudinal axis and the torsional rotational axis are generally parallel. The first blade cartridge unit contacts the rotatable support surface.