UPDATE:  The $5 RR, when you spend $25 is dead.

Here is my scenario using the 15% coupon.
This coupon is valid on Friday only!

[Buy 1] Huggies Diapers or Pull Ups jumbo packs $8.99
Buy 1, Earn a  $2 Register Reward
Use the $1.50/1 from SS 11/15
And stack with the $1/1 from the Walgreens Children's Activity book, available at the pharmacy (cost $0.99, may be out of stock)

[Buy 2] John Frieda Root Awakening Hair product $5.99-6.99 each
$5.00/2 (or $2.00/1) – John Frieda Root Awakenings Hair product – (smartsource.com)
Stack with the $3.00/1 Walgreens coupon from this hand out (I found them at the register)

[Buy 2] Ghirardelli 2/$5.00
$1.00/1 (IE) – Ghirardelli Squares (bricks.coupons.com)
$1.00/1 (FF) – Ghirardelli Squares (bricks.coupons.com)

$25.97 before coupons and tax
Use 15% Walgreens Coupon (-$3.90)
Use all Walgreens coupons, then Manufacturer coupons (-$14.60)
Final Price: $7.47
Plus Get $2 in Register Rewards!

What will your scenario look like?