Photo: Otegha Uwagba Otegha Uwagba is a best-selling author and journalist who publishes the monthly culture and style newsletter Add to Wishlist . A couple of months ago, I was killing time on a long train journey by hosting a spring-fashion “ask me anything” on my Instagram . The responses were both amusing and pleasingly exacting: People wanted to know what to wear to summer weddings (“if you can bear it”); where they could buy good blouses (“NOT shirts”); and where a bag I’d posted a few

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