Thumb Score: +17

Amazon [amazon.com] has 40-Ct Nuun Sport Hydration Electrolyte Tablets (Mixed Flavors) for $28.60 – $5.72 – 40% when you ‘clip’ coupons on product page – 5% when you check out via Subscribe & Save = $10.01.
Shipping is free with Prime or on $35+ orders.

Savings
Coupon price $22.88 (clip on the product page)
40% off coupon applied. First Subscribe & Save orders only. (check and activate [amazon.com])