When Taylor Simonson and Lisa Esterhuizen were colleagues in event production in New York City, they worked on national campaigns for big clients…and then realized they could very conceivably go out on their own, and together, do big things for smaller brands. So they got business-married and had a brand baby: Gold Key Events. Taylor and Lisa share the keys to a successful business partnership. Plus: Why you should try Periscope (for reals).