In January, Brittany Lo, founder and chief executive officer of Beautini, a bridal beauty company in the New York borough of Manhattan, traveled to Oaxaca, Mexico, for a friend's wedding. This month, Lo will be in Jersey City, N.J., attending another friend's wedding. And two days later, in Miami for a third. Although Lo, 30, works in the industry, the events that she has gone to are not work-related.