What happens when a business built on simplicity gets complicated? Dollar Shave Club's founder Michael Dubin found out . . .

In 2011 Dollar Shave Club's Michael Dubin had a simple vision: to offer affordable high-quality razors by mail. Within three years Dollar Shave was valued at $615 million; in 2016 it was acquired in a $1 billion deal by Unilever. The co-founder admits that all this success has led to some complexities for this 'simple' subscription biz.