For those of you trying to figure out the coupon system at Target they allow coupon stacking- which means you can use a manufacturer’s coupon and a Target coupon on the same item.
Right now they have a great opportunity for stacking:
Nature Valley 4-pk Granola Bars – $1 (price varies by store)
Use the $0.50/1 Nature Valley Granola Bars coupon
Stack with $1/2 Nature Valley Target Printable Coupons 
Final Price: Free after stacked coupons
Thanks Mrs. Moneysaver !