Grocery giant Kroger has engineered a kitchen gadget called the Holiday Apron, that uses built-in smart features to soothe even the worst cooking anxiety. The Holiday Apron plays a relaxing Christmas song or even tells a joke if it intelligently detects an increase in volume in any given room. For smell, it periodically emits a gingerbread scent in the name of aromatherapy. And for touch, it comes with “massage-o-matic” vibrators embedded in the neck straps that give the wearer a gentle shoulder rub on command.