Update: It looks like some CVS Stores now have the limit as 1 per card. So the deal might not work. They initially had a limit of 100, which I suspected was an error.
Check with your local CVS.

Skintimate – $3.99
Receive $4 ECB
Final Cost: FREE before tax!
You can also use the $0.55/1 Skintimate coupon in the 1/15SS (it’s regional)