replying to JK, Alexcwt wrote:
You can add a small 120v (coil) SPDT relay to create an always hot wire. It
would draw a small amount of power when it's in the close position but save
you the need to run another wire in the wall to the switch.

The con: it's going to make a click sound every time either of the 3 way
switch is flicked.

Please check your local code before doing this.

--
for full context, visit http://www.homeownershub.com/maintenance/--.htm