Giant Food and Stop & Shop stores have a sale running for the next week where you can get 4 boxes of Cheerios for $6 total. Here's how you can get MultiGrain and Banana Nut Cheerios for only $0.25 per box:

Buy 2 Boxes of MultiGrain Cheerios--$1.50 each
Buy 2 boxes of Banana Nut Cheerios--$1.50 each
Use 2 $0.75/1 printable coupons (doubled)
Use 2 $1/1 printable coupons FF or IE
= $0.25 ea. after Q's !