Abstract: A full motion leverage enhancing assembly is provided for attachment to the handle of a mop, broom, rake or similar tool which has an elongate handle and a center of gravity strongly skewed away from the grip point utilized by the tool operator. In this embodiment, the leverage enhancing assembly comprises an arm clamp for securing the tool handle to a single arm of the user and a grasping shaft for grasping the tool handle. The arm clamp is comprised of a first rigid longitudinal segment adjustably attached to the end of the tool handle proximate to the user by a semi-rigid clamp having an adjustable circumference. The arm clamp is further provided with a pair of flexible, adjustably interlocking straps extending from the proximal end of the longitudinal segment opposite the clamp. The straps are constituted to form a semi-permanently and adjustably substantially circular clasp for receiving and securing a portion of the user's forearm.