#WhiteSofaChallenge... January 29, 2016 ... SUCCESS! Using products from Joss + Main, attendees at ALT Summit were asked to style a white sofa and coffee table, then get their photo in the Smilebooth. Click here to see the hashtag on Instagram or check out some of the best of below. Sarah Michelle Gellar was all smiles while promoting her own company, Foodstirs. The Smilebooth wouldn't be complete without The Girls in Glasses!