Mister Fixit: Three-way switch description

Mister Fixit: Three-way switch description

Simplest, clearest explanation and diagram I've found of how a three-way light switch works. The only thing to keep in mind is that what he has labeled as "A" and "B" (the traveler screws) are, in a typical three-way switch, opposite each other at the top of the switch. This Lowe's guide to three-way switches helped complete the picture.