Only a few more days until ‘Mad Men’ returns to the air. You can now vote for your favorite finalist in the Washington Post ‘s second ‘Mad Men’ Look contest. The winner will be revealed Monday, March 26, the day after the two-hour season premiere of the show. Want to learn more about mid-century style?  Two of the Post’s judges for the contest will host a live discussion at noon tomorrow (March 22) about interior design and the ‘Mad Men’ Look. Vern Yip, a columnist for The Washington Post Real Estate section and an HGTV star, will join an hour-long chat taking your questions with Post interior design writer Jura Koncius.