Kmart is a national supercenter chain store operating over 1,200 stores in 49 states. Apply for a Shop Your Way Rewards card and receive ‘rewards’ that will build onto your card and redeem them at checkout when you use your card. Kmart occasionally runs advertised double coupon promotions when coupons up to $2.00 in value are doubled with a minimum $25 in store purchase. Kmart sales run Sunday through Saturday.