Customer service means providing quality products and services that satisfy customer needs and wants to keep them coming back. This leads to continued success, increased profits, higher job satisfaction, improved organization morals, better teamwork, and market expansion. Key aspects of customer service include being fundamental, simple, daily, time-oriented, persevering, and specific. It also involves caring, understanding, sincerity, trust-building, orientation on the customer, going the extra mile, and earning customer return. Effective communication and relationships are also important.