Thumb Score: +17

Amazon [amazon.com] has 4-Count Colgate 360 Optic White Whitening Toothbrush (Soft) for $9.99 – $1.50 – 25% when you ‘clip’ coupons on product page – 5% when you check out via Subscribe & Save = $5.49.
Shipping is free with Prime or on $35+ orders.

Savings
Coupon price $8.49 (check and activate [amazon.com])