According to the search results, the most direct cause of customer loyalty is providing a positive customer experience consistently. This includes delivering high-quality products or services, excellent customer service, personalized interactions, and addressing customer needs and concerns promptly. Customers who perceive that they are receiving value for their money are also more likely to choose that product or service over competitors. Other factors that contribute to customer loyalty include exclusive offers for members, having a loyalty program, listening to customer feedback, and customized promotions. Successful loyalty programs focus on providing added value to customers that the competition cannot provide. In summary, customer loyalty is built through positive experiences and a commitment to customer satisfaction, which increases sales and lifetime value.