Amazon has the150-Oz Arm & Hammer Free & Clear Liquid Laundry Detergent for $5.95 when you clip the $1.50 off coupon on the product page. Shipping is free with Prime or on orders over $25.

Amazon also has 100.5-Oz Arm & Hammer Clean Scentsations Tropical Paradise Liquid Laundry Detergent for $4.49 when you clip the $1.47 off coupon on the product page and checkout via Subscribe & Save.