Martin’s and Giant Food Stores are located in Pennsylvania, Maryland, Virginia, D.C., Delaware, New Jersey and West Virginia with nearly 500 locations. Most stores double coupons, though the policy varies by location: some will double up to $0.50, others will double up to $0.99. The majority of locations will only double one like coupon per day. Martin’s has in-ad store coupons that can be stacked with manufacturer coupons when you use your BonusCard at checkout. Sales run Sunday through Saturday.