Stack Wines is a company that makes pre-packaged glasses of wine that are ready to drink. Maybe not the most practical solution if you’re drinking wine at home with dinner, but for occasions where you’re not at home or in a restaurant, stackable pre-packaged wine glasses make a lot of sense. For example, if you’re having a picnic with friends or you’re throwing an event at an event space, these glasses are easier to transport, less likely to break, and don’t require a corkscrew to open.