Double coupons are back at Kmart but for 1 day only - Sunday, October 31st! Participating Kmart locations will double up to five $2.00 coupons with a Shop Your Way Rewards card and purchase of $25 or more in grocery & drugstore merchandise. Make sure to call your local Kmart to check if they are participating and to read through the details of the double coupon event before you head out.
View their weekly ad to match your coupons up with their sale items so you can get the best deals. Kmart also has printable coupons available online (these will not be doubled, but you may be able to stack them with MFC's coupons).