Thumb Score: +41

Amazon [amazon.com] has 2-Pk Energizer CR2025 3V Lithium Batteries for $3.29 – $1 when you ‘clip’ the coupon on product page – 5% when you check out via Subscribe & Save = $2.13.
Shipping is free with Prime or on $35+ orders.

Savings
Extra $1 on the first order. Limit 1 item. (check and activate [amazon.com])