In my next book, the romantic mystery Divorce is Murder, divorce lawyer Toby Wong is forced to move back to the small town she was happy to leave. I set the series in my own hometown – a place I love, yet left – on Canada’s gorgeous Vancouver Island. Writing about Toby got me thinking about why it’s good to leave – and come home.   1) You expand your worldview Every town and neighborhood has its own culture. By the time you hit adulthood, whether you fit in or not, you understand your hometown’s norms. Maybe you grew up somewhere super conservative, the kind of place where church is mandatory and couples marry young. Or maybe your parents’ friends were constantly organizing protest marches and writing letters to Amnesty International. Whatever your reality, to you, it was normal. Now move across the country – or better still around the world. You’ll soon see that your “normal” is someone else’s “certifiably crazy”. It’s mind-blowing how differently different people interpret things. Just yesterday, in Vietnam, where I live, I met a fisherman throwing styrofoam boxes and dirty diapers into the ocean. I told him off. He told me he was cleaning…