Coupon Network has added a rare $1 Post Shredded Wheat Cereal printable coupon. This coupon can be used on any Post Shredded Wheat cereal, so this should get you a nice discount at many stores.
Walgreens sells the Post Shredded Wheat 9.25 oz boxes for only $1 each. If they sell them at your store, use this coupon to get some for free! Before heading out, make sure to take a look at the rest of the weekly deals as well!
(Thanks Wild For Wags!)