A universal handle attachment tool comprises a body having a plurality of tool sides each having a container interface surface operable to engage a face of a particular container, and having a container handle interface slot operable to receive a handle of the container. The slot can comprise a keyed profile operable to interface and lock the handle attachment tool to the container. The container interface surface extends in opposing directions beyond the slot to facilitate distribution of one or more loads acting between the face of the container and the handle attachment tool to facilitate manipulation of the container. A container for storage of at least one object comprises a container body defined by a plurality of sidewalls, and a recessed portion formed a sidewall defining a recessed cavity. The container has a handle spanning the recessed cavity, whereby the recessed cavity facilitates clearance of at least one finger of a user upon grasping the handle.