Bears with Benefit: giving increasing discounts for first time customers who have not repurchased.

SNOCKS: varying post purchase messages based on customer satisfaction

Elevate: order confirmation referencing to additional bestsellers

PURELEI: post-purchase subscription upsell\

mammaly: introducing loyalty program after 5th order

Four Sigmatic: encouragement to reorder after one average order cycle (incl. upsell into subscription)

PURELEI: giving customers VIP status + incentive to get there