Adore Beauty is offering 20% off Cerave as part of Afterpay Day sales. There's also a free 20ml hydrating cleanser with purchase of 2 Cerave products.
Cerave doesn't get discounted more than 20% off.
Free shipping is available for orders above $20, which is handy since Chemist Warehouse no longer offers free shipping and Cerave is not available in many places.