I just stumbled across this deal and didn't see it posted yet so I thought I'd share.
$500 + BOGO - Note8 / GS8 / GS8 Plus - New + New or Upgrade - IN WAREHOUSE ONLY. Buy 2 qualifying Samsung GS8, GS8 Active, GS8 Plus or Note8's (one line must be a new activation) and receive $750 back via bill credits and a $500 Costco cash card.
$250 cash card - GS8 / GS8 Active / GS8 Plus / Note8 - New or Upgrade- IN WAREHOUSE ONLY. Buy a Samsung GS8, GS8 Active, GS8 Plus, or Note8 on a new or upgrade activation and receive a $250 Costco cash card.