Tina Roth-Eisenberg calls herself "an accidental entrepreneur." She's unintentionally created at least three businesses after being forced to invoke her own personal rule: "If I keep complaining about something repeatedly, I have to either do something about it or let it go."
Many things have bothered the Brooklyn-based graphic artist, an affliction she blames on being born and raised in Switzerland. "The Swiss tend to complain a lot."
Things she decided to "do something about" include a co-working space called Friends Work Here, where creative people rent desks to be surrounded by like-minded artists to "raise the bar." She helped develop a to-do list app called Teux Deux because she couldn't find an organizing tool she liked ("It never occurred to me until that moment that I actually could design my own app!").