1 MyMixx Freebie at Jewel Posted on September 8, 2018 by The Goddess One MyMixx freebie this week at Jewel, a 10 oz box of Kar’s Sweet ‘n Salty Mix single serve bags. Add this paperless coupon to your Jewel MyMixx account by Sunday, 9/9 and redeem by Monday, 9/10.