Seventh Generation Dish Soap is on sale at Whole Foods. Print a $1.00 coupon from coupons.com under zip code 12345 and save. You may need to change your zip code to find this coupon, but doing so is easy. Just go to print.coupons.com, enter the new code (12345), return to this post, and click on the coupon link below.

Seventh Generation Dish Soap, 25 oz $3.00, sale price through 8/13
Use $1.00/1 – Seventh Generation Hand Dish Liquid Soap, zip code 12345 – (coupons.com)
Final Price: $2.00