Provide Store Credit gpl coupons that are redeemable at checkout. Send credit to your customers to use it in future purchases or allow them to gift credit to someone.
Creating a loyal customer base that are true fans of what you do ad will support you along the way is what keeps many store owners awake at night. Being the top of mind choice for a significant group of customers is the final goal of marketers and business owners, no matter if we talk about Amazon or the flower shop in your street.