Many business opportunities arise out of a personal problem or adversity. When Kate Arian was hospitalised in New York  due to needing a double lung transplant, one of the surprising things that bothered her was the inability to get her regular beauty treatments done. It was at that point that she came up with the idea of  Manicare, a Manhattan based mobile nail service  that caters to people who are either hospitalised of housebound. A year after launch, the service is generating $5,000 a month in sales.

If this can work in Manhattan, there’s no reason why it can’t work in other urban areas. Thinking more widely, what other service could you bring to the hospitalised or housebound?