Retail store loyalty cards are programs offered by businesses to encourage customers to shop more frequently. When customers sign up for these cards, they often receive discounts, special offers, or points that can be redeemed for rewards. This helps stores build a relationship with their customers and gather data on shopping habits. These cards are typically free to obtain and can be used at checkout to earn benefits. Many retailers, such as grocery stores and clothing retailers, use loyalty cards to enhance customer satisfaction and increase sales by incentivizing repeat purchases.