There are as many varieties of smart light switches (and dimmers) as there are light bulbs, and while the prospect of upgrading your old dumb switch might seem daunting, they’re usually pretty simple ...
The Family Handyman on MSN

How To Wire a 3-Way Light Switch

A light switch is the simplest of electrical devices. Flip the switch, electricity flows. Flip it again, electricity stops.
Tackling electrical projects can be daunting for DIYers. It’s one task that can be dangerous if not done correctly. However, knowing how to wire a light switch is a relatively straightforward job, and ...