Proper clarinet care is essential for maintaining its sound quality and longevity. Regularly clean the instrument after each use by swabbing the inside with a cleaning swab to remove moisture. Wipe down the exterior with a soft cloth to prevent dirt buildup and protect the finish. Additionally, check the reeds regularly, as they can wear out and affect sound production. Store the clarinet in a protective case when not in use to prevent damage. Avoid exposing it to extreme temperatures or humidity, as these conditions can warp the wood and affect performance.