Here are seven ideas for a customer loyalty program for your small bookstore:

1. **Frequent Buyer Rewards**: Offer a loyalty card where customers earn stamps or points for each purchase, and after a certain number of purchases, they receive a discount or a free book.

2. **Exclusive Events**: Host monthly book club meetings or author signings exclusively for loyalty program members, offering them early access or discounts on event tickets.

3. **Birthday Discounts**: Send personalized birthday discounts or freebies to loyalty program members, such as a percentage off their purchase or a free small item.

4. **Advance Notice on New Releases**: Give loyalty members early access or notifications about upcoming book releases, allowing them to pre-order or reserve copies before the general public.

5. **Refer-a-Friend Program**: Encourage existing members to refer friends to join the loyalty program by offering them discounts or extra loyalty points for each successful referral.

6. **Seasonal Promotions**: Offer special promotions or discounts during holidays or specific seasons, exclusively available to loyalty program members.

7. **Book Donation Program**: Allow loyalty program members to donate gently used books and receive loyalty points or discounts on future purchases as a thank-you gesture for supporting your bookstore's community initiatives.