9. Ensure a Lightbulb's Long Life

You know that popping sound that signals another lightbulb has burned out before its time? The cause: The little brass tab inside the lamp socket that makes contact with the bulb base is dirty or bent, interrupting the connection and causing the filament to imperceptibly flash on and off, shortening its life. With the fixture unplugged or the circuit breaker switched off, clean the tab with a Q-tip and rubbing alcohol; then nudge it up with a screwdriver so that it stays in contact with the bulb base.

The Causes of Constant Bulb Burnout
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