Did you receive the email from Kmart, telling you about double coupons up to $2.00, beginning 12/5?
See all the details from my email here.
Kmart will double any coupon, up to $2.00. This means a $2.00 off coupon becomes a $4.00 coupon. Kmart is requiring a $25 minimum purchase to qualify and a limit of 5 coupons will be doubled per day. Only 4 of the same coupon can be doubled in one transaction.