In one embodiment, the present invention includes a method for reassigning a first address of a block-alterable memory to a second address of the block-alterable memory, where the second address corresponds to an updated available block. The dispenser includes an elongated strip having a plurality of one time use sachets formed integrally therewith, each sachet containing a measured quantity of toothpaste therein suitable for a single use. The method then selects a first sorting field from the plurality of fields and groups the plurality of CDRs as a function of data within the first sorting field. An electromagnetic clamp may be attached to the linear actuator and configured to hold the linear actuator in position so that linear motion of the actuator rod produces movement of the handle of the electrical switch when power is applied to the linear actuator from the power supply.