Amazon has the 64oz Chemical Guys Mr. Pink Foaming Car Wash Soap (Candy Scent, CWS_402_64) for $25 - 30% off coupon (check "Save an extra" box, eligible on first S&S order for this product) - 5% off with Subscribe & Save (can cancel at any time) = $16 with free shipping on $25+ or with Prime. Works with foam cannons, foam guns, and bucket washes.