Walgreens is a little harder to learn than CVS, and at times can be frustrating. That said, there are some good deals if you have the time and patience. I am definatly not an expert on this store, but I will grab a deal here and there if its something I need.
Walgreens has a customer care program called Register Rewards (RR). You do not need a card or anything to take advantage fo this program. Each week, there will be different RR deals, some even free after RR. Register rewards print out in the form of a catalina coupon seperatly from your receipt.
A RR is considered a coupon. When you check out, you cannot have more coupons than you do items. So if you are stacking coupons and have a Walgreens coupon and a manufacture coupon for an item, the register will beep. At this point, you would need to add a "filler" item (an inexpensive candy or item to make the coupons equal to the number of items).
Walgreens also has Instant Value Coupons that are found in their weekly advertisement. Like the RR's, they appear as a "box" outlined in red in the ads and display information about the product and the final price.
There is also a Walgreens Monthly Coupon book that can be fount at the front of the store with the weekly ad's. These coupons can be matched with manufacture coupons and on sale items for maximum savings. Also, if your grocery store takes Walgreens as a competitor coupon, these can be used.
If you purchase more than one of the same qualifying items in the same transaction, only one RR will print. If you want multiples of the same item, you will have to ring them up in seperate transactions.
If you redeem a RR against the same offer in another transaction, it will not produce another RR.
No cash back will be given on a RR.
The order in which you give the cashier your coupons is very important at Walgreens. Always give RR, then manufacture coupons, then store coupons. A different order will cause the register to sometimes beep, or different value issues.
As all coupons, register rewards do expire, make sure you know your expiration dates.