Amazon現在頁面中商品有buy one get one 50% off的優惠, 加入購物車自動減價. 只要把任2件(或雙數件)加入購物車, 便宜的那件會自動變成半價. 若是頁面中有clip coupon或是可以用Subscribe & Save就可再減錢. 

可買不同的商品, 只要買雙數件, 每2件就有一件可半價. 為方便計算, 以同一商品為例. 

例如: Emergen-C Immune+ 1000mg Vitamin C Powder原價$15.99 特價 $10.99, 用subscribe 買2盒, 最後是$10.99 + ($10.99 – 50%) -5%(Subscribe) = $15.38,  算起來一盒 才$7.69. 免運費!!

由此購買

COVERGIRL
$10.94$12.99
Emergen-C
$10.99
Neutrogena
$7.98$8.99

St. Ives
$3.69$5.09
Real Techniques
$6.29$7.99
Culturelle
$18.79

Neutrogena
$5.68$10.85
Albolene
$9.69$11.99
Always
$19.92

SlimFast
$9.89
Nature Made
$6.29
Revlon
$5.19$7.89

Huggies
$9.99
COVERGIRL
$9.94$12.99
New Chapter
$68.97

AVEENO
$6.97$8.99
Trojan
$6.99$9.99