https://amzn.to/4g8v1w7 37.8-Oz Arm & Hammer Odor Blasters In-Wash Scent Booster (Various) on sale for $5.99 - $1.20 (clip the 20% off coupon on the item page) - $0.30 (5% Subscribe & Save discount) = $4.49. Shipping is free with Prime or on $35+ orders.