Summer is coming up and that means it's time to start feeding the kids crap for breakfast since they don't need to learn anything :) Target has 12 count Pop Tarts on sale for $2.33 with a $5 gift card when you buy 5. Also there are 50 cent of target coupons that you can print here. You can also use $1/2 from the 4/26 Red Plum coupon insert.
This gets you down to 83 cents a box with only the target printable or if you do the deal 2 times you can use 5 manufacturer coupons and get your total cost down to 43 cents a box for 10 boxes.
*Disclaimer: the target coupons do say one per transaction in the fine print, but usually they will take more than one at a time.