QDEAR TIM: I am pulling my hair out trying to wire a four-way switch. What is the secret? Do you need a special four-way electrical switch or a four-way light switch? At this point, my new wife thinks ...

A light switch is the simplest of electrical devices. Flip the switch, electricity flows. Flip it again, electricity stops. Lights on, lights off. That’s great for a small room with one entrance.