(Allthingsd) - Lot18, which offers wines online for a discount, is expanding into travel deals that are packaged especially for lovers of the fermented grape.With the launch of the travel vertical, the members-only flash sales site treads more heavily into the territory of others who have been working on travel packages and other experiences for much longer. Several other daily deals and flash sales sites have already gotten into the business of offering travel packages, including Groupon’s partnership with Expedia and Gilt Groupe’s high-end, exclusive vacations on its own Jetsetter.com.