How to tell if a light switch is bad

Light switches seem to be one of those few home appliances that last forever - generally only getting replaced when style dictates.

Why Is My Light Switch Warm? Cathey Services, Electrical Services

How can I test this switch with a multimeter to make sure it is functioning correctly? : r/AskElectronics

1964 light switch - Page 3

Light Switch Repair: How to Tell if a Light Switch is Bad - Right Electrical

SYMPTOMS OF A BAD BRAKE LIGHT SWITCH AND FIXES

Symptoms of a Bad Brake Light Switch - AutoZone

How To Fix A Broken Light Switch

How to tell if a light switch is bad

Light Switch Repair: How to Tell if a Light Switch is Bad - Right Electrical

How to Test if a Light Switch is Bad

How can I test this switch with a multimeter to make sure it is functioning correctly? : r/AskElectronics

How to Test a Light Switch With a Multimeter

Light switch stopped working. With breaker off, one wire is still hot? : r/AskElectricians

Fixing Common Light Fixture Problems