There is a new Post Cereal coupon available right now for $1/2 boxes.
This makes a decent deal at Walgreens this week:
{Deal Idea #1}
Buy 1 Post Great Grains at $2.50
Buy 4 Post Cereals of your choice at $2.50
Use $1/1 Post Cereal coupon
and (2) Use $1/2 Post Cereal coupons or from 11/6 SS
Pay $9.50 and get back a $4 Register RewardThat makes the net price $1.10 per box
OR
{Deal Idea #2}
Buy 4 Boxes of Post Cereal at $2.50
Use (2) $1/2 Post Cereal coupons or from 11/6 SS
Pay $8 and get $3 back in a Register RewardFinal Price: $5.00 or $1.25 per box
That is not a steller deal for cereal but considering these are pretty high quality products- Grape Nuts, Great Grains etc.. it is not a bad deal at all.
There is also a decent deal at Rite Aid this week on cereal.

I am not seeing the Post cereal coupon on the Coupons.com site, I tried all your links too, is it under a certain zip code?
Try zip code 90210.
I found the coupons … and I see the 2/$5 … but I don’t see anything in the ad about the $4 RR (are RR regional?).
Lisa no it is not regional, you can find more details on the post here:
http://myfrugaladventures.com/2011/11/post-cereal-as-low-as-75-at-walgreens/
At Rite Aid the boxes of Post Shredded Wheat have a Free Product coupon printed on the back of the box for a Del Monte Natural Fruit Cup valued up to $2.29, so a great deal on top of a great deal.