A device and method is disclosed for creating at least two pockets in a keycard holder comprising the steps of, cutting a piece of paper across one length at an angle between 20 and 30 degrees to the width, such that the width is approximately 6 inches on one side and the length is approximately between 5. A reflectivity of the recording layer is specified to be more than 10%. The surface of the steel wire is roughened up so it can hold liquid coffee that gets released into the milk foam during the stamping process. This measure of density also accounts for the heterogeneous transmit power capabilities of node devices and is used for updating of one or more operational parameter of the node device relating to utilization of the radio communications medium by that node device.