Palmolive Dish Soap, Only $0.63 at Walmart! Thumb Score: +1 Palmolive dish soap is cheap at Walmart! Use a $ 0.25 Palmolive coupon [coupons.com] on a 12.6-ounce bottle that is regularly $ 0.88. The coupon reduces the price to $ 0.63. Slickdeals Hot Deals Forum