Stonyfield Oikos Greek Yogurt : Save $5 When You Buy 10 This post may contain affiliate links. Please see the full disclosure policy here. Posted on April 18, 2012 Written by Mary Leave a Comment Savingstar added a hot new “coupon” – Receive $5 into your SavingStar Account when you buy 10 Stonyfield Oikos Greek Yogurt cups! You do NOT have to buy them all at once. Participating stores only. This is one of my favorite treats-I will be holding out for a good sale on these at Winn Dixie!