Post Trail Mix Crunch Cereal is on sale this week for $2.50/box at Walgreens. Use the $2/1 coupon here and you'll get the boxes for $0.50 each--which is a great deal in and of itself. But wait, that's not all!
There are numerous reports of Register Rewards printing when buying three or more boxes. And here's what it looks like this unadvertised Register Reward deal is:
Buy 3 boxes of Post Trail Mix Crunch Cereal, Get $2 Register Rewards
Buy 4 boxes, Get $3 Register Rewards
Buy 5 or more boxes, Get $5 Register Rewards
So, if you're able to print more than 2 of the $2/1 coupons, you can get the cereal for free after the coupons and Register Reward. And if you are able to get a hold of five coupons, it can be a nice little money-maker after the coupons and Register Rewards.