Downhole fluid treatment planning systems and methods should enable efficient creation, review, and editing of downhole fluid treatment plans. An illustrative method includes receiving a mail piece at an outgoing mail center for transport to an incoming mail center and subsequent sorting and transport from the incoming mail center to an an addressee. Pulleys are mounted to respective ends of the axis. The electric device recognizing section is configured to communicate with the electrical system and recognize any of the electric devices while the connecting section is electrically connected to anyone of the electric devices.