If you're a fan of retro fashion, consider a vintage-inspired dress for a wedding guest outfit. Cyber Monday is a great time to find unique and one-of-a-kind vintage-inspired dresses at discounted prices. Look for dresses with classic silhouettes like A-line, fit and flare, or tea length. Choose fabrics like lace, chiffon, or tulle for an authentic vintage feel. Complete your look with some vintage-inspired accessories like a fascinator or a pearl necklace.