Using csh & tcsh: Type Less, Accomplish More (Nutshell Handbooks)

Leviton Lever Edge 15 Amp 3-Way Rocker Switch, 10-Pack, E5603-MW, White

Lutron Sunnata Touch Dimmer Light Switch with Wallplate, LED+ Advanced Technology for LED and Incandescent, 3 Way/Multi Location, STCL-153MW-WH, White

GHome Smart Switch, Smart Wi-Fi Light Switch Works with Alexa and Google Assistant 2.4Ghz, Single-Pole,Neutral Wire Required,UL Certified,Remote/Voice Control, No Hub Required (4 Pack)

Lutron SFSQ-LF-LA Skylark 1.5 Amp Single-Pole 3-Speed Slide-to-off Fan and Light Control, Light Almond

Lutron Caseta Original Smart Dimmer Switch Kit, 2 Dimmer Switches, 2 Wall Plates, 2 Pico Remotes, and Smart Hub, Works with Alexa, Apple Home, Google Home, 3 Way, 150W, No Neutral, P-BDG-PKG2W-A

Lutron Claro 15 Amp On/Off 4-Way Switch, CA-4PS-WH, White

Lutron Maestro LED+ Dimmer Switch Kit for Dimmable LED, Halogen and Incandescent Bulbs, 150W/3-Way or Multi-Location, MACL-153M-RHW-WH, White

Lutron Maestro Digital Switch, 8A Single Pole/Multi Location, MA-S8AM-WH, White