Crest whitestrips 28 strips – 14 treatment, $15 coupon back again, $20.93 final

Crest whitestrips 28 strips – 14 treatment, $15 coupon back again, $20.93 final
Walmart – $ 39.97 ($ 2.85 per treatment)
Costco – $ 39.99 (18 treatments) ($ 2.22 per treatment)
Amazon – ($ 1.48 per treatment)
https://www.amazon.com/gp/aw/d/B0…hitestrips