Kmart is doubling coupons 11/20 - 11/23 that are .99 or less. This means that a .75 coupon is worth $1.50 (just like Harris Teeter and Lowes Foods everyday). They will double an unlimited total amount of coupons and you need to be a Shop Your Way rewards member to have your coupons doubled. You can sign up at the store if you are not already a member. It's free to sign up. In the past they have limited the number of identical coupons you can use so check with your individual store to see if they have limits this time.
If you go, please post any good deals you find.