Here is the CVS coupon policy. I suggest printing this policy and taking it to the store with you!
:: What’s the point of this? Each week we head to CVS to spend as LITTLE money out of pocket as possible- while generating as many ECBs that we can! Read my CVS 101 post to learn all about CVS and Extra Care Bucks.
:: Check out previous store trips here.
Entering the store week we had:
$3 ECBs
Four transactions today.
Trip #1:

Total before discounts:
(1) Colgate 630 Toothbrush @ $5.99 (Get $2 ECBs WYB 1)
Total Sale Price: $5.99 (Retail value = $8.29)
Used the following coupons:
(1) $2/1 Colgate coupon from 4/29 SmartSource
$3 ECBs
Total out of pocket: $.99
Total into pocket: $2 ECBs
Trip #2:

Total before discounts:
(1) Colgate Max Fresh Toothpaste @ $2.99 (Get $2.49 ECBs WYB 1)
Total Sale Price: $2.99 (Retail value = $3.89)
Used the following coupons:
(1) $.50/1 Colgate coupon from 4/29 SmartSource
$2 ECBs
Total out of pocket: $.49
Total into pocket: $2.49 ECBs
Trip #3:

Total before discounts:
(2) One Touch Meters @ $10/each
(1) Colgate 360 Toothbrush @ $5.99 (Get $2 ECBs WYB 1)
Total Sale Price: $25.99 (Retail value = $48.27)
Used the following coupons:
(2) $10/1 One Touch coupons from 4/29 SmartSource
(1) $2/1 Colgate coupon from 4/29 SmartSource
$2.49 ECBs
Total out of pocket: $1.50
Total into pocket: $2 ECBs
Trip #4:

Total before discounts:
(1) Colgate Max Fresh Toothpaste @ $2.99 (Get $2.49 ECBs WYB 1)
Total Sale Price: $2.99 (Retail value = $3.89)
Used the following coupons:
(1) $.50/1 Colgate coupon from 4/29 SmartSource
$2 ECBs
Total out of pocket: $.49
Total into pocket: $2.49 ECBs
*******************************************************
As it now stands, here are our savings after 57 weeks of shopping at CVS:
Total value of purchases: $2136.73
Total out-of-pocket that we have paid: $89.25
Total ECBs generated: $676.69
Total value to out of pocket savings ratio: 96%