How do you properly clean and maintain sink knobs to ensure they remain in good working condition?

To properly clean and maintain sink knobs, regularly wipe them down with a mild soap and water solution to remove dirt and grime. Avoid using harsh chemicals or abrasive cleaners that can damage the finish. Check for any loose screws or parts and tighten them as needed. If the knobs are still difficult to turn or are leaking, consider replacing them to ensure they remain in good working condition.