10 ways to spend $15 on a Costco gift card

It's hard to believe it took this long to see a Costco coupon.A couple of weeks ago, a Costco shopper posted a video of him/her using the coupon to buy a $15 gift card.And then it went viral.A few days ago, another Costco shoker shared another video showing how to use the coupon.But it seems that even Costco has gotten in on the act.The video, posted to YouTube on Tuesday, shows an employee at Cos...