Diageo has launched a new limited-edition offering in the Don Julio Tequila brand. Don Julio Reposado Double Cask ($65 a 750-ml.) is a traditional reposado that’s finished for two weeks in casks that previously held Lagavulin Islay single malt Scotch whisky. The 40% abv Tequila is available nationwide. For more information, visit Donjulio.com.