Before I get to the scenarios, I wanted to mention a few things.
1. Most stores are limiting 2 transactions per Preferred Savings Card per day
2. The All Detergent IS part of the promo. It worked for me and several people I have talked to.
3. You need to get to $30 BEFORE coupons and tax. You total after tax should be $31.80. So you will get to $30, then use your manufacturer coupons, then the doublers and then the Catalinas.

For more ideas, go HERE, HERE and HERE

Spend $30 on participating products and Save $15 On Your Next Order
Get to $30 Before Tax and Coupons and stay right at $30
If you have $60 worth of products, split it into 2 transactions
The $15 will be in the form of a Catalina to use on the next order
You will maximize your savings, if you do multiple orders and roll your Catalinas.
The price listed is the price BEFORE factoring in the $15 Catalina.

{BUY 12} Best Foods Mayonnaise 22-30oz $2.50 each
Use any of the following coupons:
Best Foods product, any 18 oz. or larger .60/1 (8-9-09) RP-5/17

Best Foods product, any 18 oz. or larger .60/1 (9-20-09) RP-6/28
$1/1 (IE) – Best Foods Mayo – (bricks.coupons.com)
$1/1 (FF) – Best Foods Mayo – (bricks.coupons.com)
Use up to 7 Doublers
Final Price: $17.00 OOP
Final Price after factoring in $15 Catalina: $2.00 or $.17 each

{BUY 4} Country Crock Spread 15oz $2.00 each
$0.55/1 – Country Crock Calcium plus Vitamin D – (countrycrock.com)
$0.55/1 (IE) – Country Crock – (bricks.coupons.com)
$0.55/1 (FF) – Country Crock – (bricks.coupons.com)
{BUY 12} Betty Crocker Premium Brownies 16.5-26.7oz $2.00 each
Use any of the following coupons:
$0.75/2 – Betty Crocker Supreme Brownie mix – (coupons.com)
$0.75/2 – Betty Crocker Supreme Brownie mix – (bettycrocker.com)
$0.75/2 – Betty Crocker Supreme Brownie mix – (boxtops4education.com)
Use up to 6 Doublers
Final Price: $20.80 OOP
Final Price after factoring in $15 Catalina: $5.80 or $.36 each

{BUY 4} All Detergent $3.50 each
$1/1 – All Detergent – (alllaundry.com)
All or Surf Laundry Detergent, any $1/1 from 6/28
{BUY 4} Vaseline Lotion $2.50 each
Vaseline Lotion, any $1.25/1from 8/2
{BUY 2} Klondike Bars 6 pack $2.50 each
$1.00/2 – Klondike Products – (klondikecoupon.com)
{BUY 1} Ben& Jerry’s Ice Cream Cups 3.6oz
Use 5 Doublers
Final Price: $15 OOP
Final Price after factoring in $15 Catalina: FREE!!

What Scenarios have you done?