I'm not 100% sure how or why this works because I haven't tried it myself yet but according to Wild for Wags its looks like you can score FREE Gain Laundry Detergent this week at Walgreen's!
Buy 1 Gain Powder Detergent 30 load $5 each
Buy 2 Gain Dish Liquid $1.79 each
-use $2/1 Gain Powder Detergent Coupon 9/11 SS
-use 2 $0.50/1 Gain Dishwashing Liquid Coupon 8/14 RP
-Get 2 separate $3 Register Rewards back!
=FREE + $0.42 MONEYMAKER
OR IF YOU PREFER LIQUID DETEREGENT... do the same deal supplementing the $5 Gain liquid laundry detergent, use the $1/1 Gain Detergent coupon in the 8/14 RP and get the detergent and the two dish soaps for $0.58 total after the Register Rewards!