Free Pepsi Next. Grab a sample of Pepsi, Doritos or Cheetos from Kroger. This freebie is an in-store offer and takes place on May 17th, 2013. Try the new Cheetos flavor, “mix-ups”. Choose from cheesy salsa mix or Doritos Locos Tacos flavor. The quantities are limited so make sure to be one of the first to grab this sample from stores on May 17th, 2013.