Randalls - Honey Bunches of Oats Cereal $0.89

Honey Bunches of Oat cereal is on sale for $1.69 with in ad coupon. 

Well, there is also currently a catalina running. 

Buy 3, get $2
Buy 4, get $3
or Buy 5, get $4

So the deal would work out like this

Buy 5 boxes of Honey Bunches of Oats @ $1.69 = $8.45

Get $4 catalina back

Final Price = $.089 ea box