Thumb Score: +17

Amazon [amazon.com] has 6-Pack 19-Oz Seventh Generation Liquid Dish Soap (Fragrance Free) for $15.90 – 15% when you ‘clip’ the coupon on product page – 5% when you check out via Subscribe & Save = $12.72.
Shipping is free with Prime or on $35+ orders.

Price
$8.10 lower (39% savings) than the list price of $20.82
$4.22 lower (25% savings) than the previous price of $16.94