Kmart Kmart is one of North America's most widely loved and popular discount retail stores. Kmart offers a huge selection of housewares, linens, and electronics - as well as hardware, jewelry, and apparel. Kmart is known for its friendly customer service and for holiday shopping extravaganzas. Kmart Coupons and Coupon Codes may be available in store for special buy one - get one promotions, as well as to offer a discount on sales totaling over a certain dollar amount. Kmart Coupons and Coupon Codes are available on the internet and may be applied to online purchases at KMart.com to add even further savings.