Customers leave product pages and forget to buy. Sticky Cart keeps an add-to-cart bar visible as they scroll, so they can add items without scrolling back up. On non-product pages, it shows a cart summary with item count and total. Add banner messages for announcements, countdown urgency timers, or free shipping progress bars. Control where it appears with page, product, collection, customer, and market targeting rules. Works on mobile and desktop with full color customization.