Thumb Score: +20

Amazon [amazon.com] has 12-Pk 12-fl oz Diet Dr Pepper Soda 2 for $17.24 – $7.24 (multibuy discount) – 5% when you check out via Subscribe & Save = $9.14.
Shipping is free with Prime or on $35+ orders.

Savings
Save $7.24 on 2 select item(s) (check and activate [amazon.com])