Stores

Walgreens

    You can use One manufacturers coupon, and One Walgreens coupon to get a better deal the same product.
(Walgreens coupons are available either in their weekly ad, or the coupon booklet that should be displayed on or near the weekly ad stand. They also have a coupon booklet back by the pharmacy that is more for diabetics, but once in a while I may refer to that book).
   Register Rewards are good toward your NEXT purchase. If you buy an item that prints out an RR you can't turn around and buy that same item with the RR that just printed off. Well... technically you can, but if you do another RR will NOT print out. RR's are considered manufactures coupons, and so when buying items, make sure you have at least one item per one manufactures coupon that you are using (This does NOT included the Walgreens coupons). Hopefully that makes sense....

Target 

    You can use One manufacturers coupon, and One Target coupon to get a better deal the same product. Target coupons are found here and sometimes in your Sunday paper. Beware though because some of the coupons online are manufactures coupons. You can use the manufactures coupon that you print off on the target website at Target or any other store. (Some stores are funny about excepting them when they have a target logo on it, but most often they will accept it bc it's a manufactures coupon.)
  

Gerbes (Kroger affiliated)

    Gerbes Doubles your coupon value up to $1.00.

For example:
$.40 coupon will be valued at $.80
$.25 coupon will be valued at $.50
$.50 coupon will be valued at $1.00
$.75 coupon will be valued at $1.00

You can get some really good prices on groceries here! There is also coupons you can upload to your Gerbes card here and here. Two different sites, so be sure to upload coupons from both sites.

Hyvee

   Hyvee has Hyvee coupons once in a while that you can print out online, but they always seem to have hyvee coupons in their weekly ad. You can combine the Hyvee coupon with a manufactures coupon to get a better deal.

Walmart

To be honest I haven't really gotten to many good deals here. I've been told by one cashier that you can only use one printable manufactures coupon per transaction, but other cashiers will take lots. (I have yet to have any problems with coupons from the Sunday paper) Somehow I seem to walk away feeling like I spent to much, but that could be because I often buy stuff that I don't have coupons for, but need. Anyways... you can get some deals here and there and I will try to keep you updated on them.