It looks like Kmart will be doing their Super Double Coupons March 16-March 22nd.

Here are the details:

• Kmart Store coupons will not double.  Only Manufacturer’s coupons will.
• $2.00 coupon = $4.00 off!
• Limit 5 coupons per day (you can do all 5 in one transaction)
• Depending on your region, some stores will require a $25 minimum purchase for doubled coupons.