Weis started a promotion today where you purchase three boxes of General Mills cereals and receive a catalina coupon for one FREE gallon of milk. So, I purchased three boxes of Trix cereal which are on sale for $2.00 per box this week. I used three printable coupons for .55/1 box of Trix. Each of the coupons doubled and the cereal cost .90 cents per box. At the end of the transaction, I received a catalina coupon for a FREE gallon of milk. Printable coupons for the Trix cereal can be found HERE and HERE. Also, there were General Mills cereal coupons in the August 9, 2009 insert.