Right now Amazon has Tide Laundry Detergent, 50 oz, 2 pk for only $10.98.  Here is what you will need to do:

$11.98 Tide Laundry Detergent, 50 oz, 2 pk
$1 off with Clip this Coupon
Net Price: $10.98

This will ship for Free with Super Saver Shipping with orders of $25 or more. You can upgrade your membership to Amazon Prime and get Free 2-Day Shipping.

Disclaimer: This post contains a link to an affiliate. See my Disclaimer Policy for additional information. Prices are subject to change without notice from Amazon.com so please verify the purchase amount before you order.