CVS has joined the ranks of those who will let you load e-coupons on your card!
The service they use is Saving Star. When you buy the product you earn that coupon amount in your account (it is not taken off of your bill) and when you have $5 saved up you can turn it into an Amazon Gift Code or a Paypal payout (with more options to come as it grows).
I am signing up right now- I like those Amazon Gift Codes!
Click here to check it out yourself!