An apparatus for fastening a shoelace includes a housing, a rotating cover, a reel part, and a restricting member. When assembled, the ribs 56 and notches 28 engage each other to resist axial translation between the stud and the collar. One end of the handgrip section is connectable with a hose. The bowl socket has an electric heater coil for heating a water bowl. Respective portions of the data file are allocated to each of the number of collaborator devices based on at least one of throughputs associated with the number of collaborator devices and potential debits charged by the number of collaborator devices.