Kristin Cavallari wants to work for “two or three more years”. The 37-year-old reality star has enjoyed huge success with TV shows such as ‘The Hills’ and ‘Very Cavallari’ – but Kristin would actually love to move away from the showbiz industry in the coming years. The blonde beauty told Bustle: “My celebrity could go away tomorrow and I would be really happy. “I want to work for two or three more years and literally be done and then open up a coffee shop in a little beach town just for fun.” Kristin intends to quit show-business once her kids graduate from high school. The TV star – who has C…