I don't have very many little fetishes, but the one I do have is that I like a particular mug to drink out of. It's just a small china cup, and I get very upset if my husband moves it.
Everyone thinks I have a coffee plantation in Sierra Leone, but I have a cashew crop project. I wrote about a woman who owns a coffee plantation! When you are talking about a woman writer coming from a hot country, there's a complete assumption that she is writing about her own life.
I get a very vague idea and - perhaps because I once was a journalist, or perhaps because that's what made me want to be a journalist - I go off and explore it for a bit, rather than mapping out a plot and then filling in the research.