I'll start with regular old coupon matchups, move onto a few Register Reward deals that caught my eye, give you a few ideas for "filler" items, and end with some general instruction on Walgreens for those getting started. (So if you're getting started, you might want to head their FIRST!)
Bic Lighter
$2.50 each with in-ad coupon (limit 4)
Stack with $1/1 coupon from 8/23 SmartSource
Bottom line: $1.50
Mentos Gum
$0.99 each with in-ad coupon (limit 3)
Stack with $0.55/1 coupon from 10/11 SmartSource
Bottom line: $0.44
Butterball Broth
$0.50 each with in-ad coupon (limit 4)
Quaker Instant Oatmeal, 18-oz tub
Buy one @ $3.19, get one free
$1.25/2 coupon from 8/30 Red Plum
Bottom line: $0.97 each
L'Oreal HIP Cosmetics, and L'Oreal foundation, blush, concealer, and powder
Buy one, get one free
(2) $1/1 coupons from 8/30 Red Plum
Bottom line: varies
Listerine Total Care Mouthwash $2.50
$2/1 coupon from 4/26 Red Plum
Bottom line: $0.50
Carefree Pantiliners
$0.99 each with in-ad coupon (limit 3)
Stack with $0.50/1 printable coupon
Bottom line: $0.49
Revlon Colorsilk
$1.99 each with in-ad coupon
Stack with $1/2 coupon from 10/04 SmartSource
Bottom line: $1.49 each
Register Reward Deals
Oust Surface & Air Disinfectant $2.99
$2/2 coupon from 10/04 SmartSource
Receive a $1 Register Reward
Bottom line: $1.49 each
SoftSoap Ensembles
Purchase pump @ $5.99 and base @ $3.99
Receive a $4 Register Reward
Submit for $4 manufacturer's rebate – forms have been in select stores
Bottom line: $1.98 for both
Suave Hair Care & Deodorant
Buy 3 for $5
$1/2 hair care coupons from 10/25 Red Plum
$0.75/1 deodorant coupon from 10/25 Red Plum
Receive a $2 Register Reward
Bottom line: $0.25 – $0.50 per item (best deal is deodorant)
Degree Deodorant (fine fragrance and sport pictured) $3.50
$1.50/1 printable coupon
Receive a $2 Register Reward
Bottom line: FREE!
Zicam Zavors $9.99
$2/1 coupon from 10/25 SmartSource
Receive a $3 Register Reward
Bottom line: $4.99
Robitussin-to-go $2.49
Receive a $2.49 Register Reward
Bottom line: FREE
Chapstick Fresh Effects $2.99
Receive a $2.99 Register Reward
Bottom line: FREE
Dulcolax Balance $7
$3 coupon found on product
Receive a $4 Register Reward
Bottom line: FREE
10-ct Fiber Choice or Beano $2.49
Receive a $2.49 Register Reward
Bottom line: FREE
Dentex Dental Floss $2
Receive a $2 Register Reward
Bottom line: FREE
Gillette Fusion MVP Razor $8.99
$4/1 coupon from 9/27 P&G
Receive a $6 Register Reward
Bottom line: ($1.01)
Halls Refresh Cough Drops $1
$1/1 coupon from 9/27 SmartSource
Receive a $1 Register Reward
Bottom line: ($1)
Vaseline Sheer Infusion $6.99
$1/1 coupon from 10/18 Red Plum
Receive a $6.99 Register Reward
Bottom line: ($1)
Emergen-C Immune $3.49
Receive a $3.49 Register Reward
Bottom line: FREE
Trident Layers Gum
Buy 2 for $2
(2) $0.75/1 printable coupons
Receive a $1 Register Reward
Bottom line: ($0.50)
(Note: I'm not sure if the above site will let you print two. If only one, you'd pay $0.25 for 2 gums – still not bad!
Filler Item Ideas
As a reminder, you must have at least as many items in your transaction as manufacturer's coupons. Register Rewards are treated as manufacturer's coupons, too. So if you are planning on buying 4 items with 4 manufacturer's coupons and a Register Reward, you'll be out of balance. To remedy this, select another item – ANY item to add to your order. Below are some of my ideas for low-cost ways to make your transactions work. Oh and Walgreens coupons aren't factored into the equation – so fill free to use 'em!
Nestle candy bars $0.50 each with in-ad coupon (limit 6)
Royal Gelatin $0.20 each wtih in-ad coupon (limit 5)
Act II Popcorn $0.20 per bag with in-ad coupon (limit 
I would also be on the lookout for heavily discounted Halloween items – especially as we approach the end of the week!
Getting Started
All this Walgreens' stuff have you confused? You might be interested to read a series of posts on Register Rewards I recently had the privelage of writing for Steals and Deals.
Go here to read:
And if you are new to coupons in general, you've found the right blog! This month I'm focusing on helping you get started with a series of beginner posts written in the simplest language I can muster. Besides just telling you how to use coupons, I'm working to show you the bigger picture of how to save and shop. You can find this series located in the category October Coupon Lessons.
