SavingStar Freebie Friday: Jiffy Corn Muffin Mix April 10, 2015 By: Tricie share This weeks’ Friday Freebie from SavingStar is: Save 100% when you buy Jiffy® Corn Muffin Mix. Load this Offer to you Account today and purchase by 4/12. Check out ALL SavingStar Offers HERE! Please be advised that this post may contain affiliate links. See my Disclosure Policy for details.