• Rainbow will double an unlimited number of coupons up to $1 on Wednesday and on Oct. 31.
• Customers must spend $25 before coupons can be doubled.
• Rainbow Foods gift cards cannot be counted toward the $25 minimum.
• Customers can use up to five coupons when buying multiples of identical items.
• Only one transaction per customer per day.
• Customers can ask for a rain check on out-of-stock items, but the coupon doubling offer is good only Wednesday and Oct. 31.
• A rewards card is not required to get unlimited doubling, but some sale items are discounted only with the card.
