Thumb Score: +14

Amazon [amazon.com] has 16-Oz Amazon Grocery Ground Mustard for $2.82 – 5% when you check out via Subscribe & Save = $2.68.
Shipping is free with Prime or on $35+ orders.

Subscribe & Save
5%: $2.68
15%: $2.40
Add to next delivery [amazon.com] (with free shipping)