Amazon has select Muscle Milk Protein Shakes & Powder on sale listed below when you clip the 20% off coupon on the item page and check out via Subscribe and Save. Shipping is free with Prime or on orders $25+.
Note: Must be logged in to clip coupons; coupons are typically limited to one per account. You may cancel Subscribe & Save any time after your order ships.
Available (prices after 20% off coupon & 5% checkout w/ S&S):
Protein Shake
12-Count 11.16-Oz Muscle Milk Zero Sugar 20g Protein Shake