This offer is being reported around the blogosphere- but I have NOT verified it at the Boise Idaho locations.  It is only in Select Regions, so if you head to Target and try it out let us know.  You can grab the item, and scan it at a Self Scan Machine and if it is working at your store the screen will say
$5 Gift Card Promo. 

Buy 6 Listerine  Smart Rinse Double Packs $
Use (3) B1G1 Free Coupons from SS 8/2
Use (3) $1.00/1 coupons from RP 10/04
Final Price OOP: $8.97
PLUS! Receive (2) $5.00 Gift Cards

You are able to use all 6 coupons because 3 of the B1G1 coupons are applied to the FREE Item, and the $1 Coupons are applied to the 3 that you are paying for.

Thanks to For The Mommas for the heads up!