I struggled to enjoy my time in Ho Chi Minh City. I found the combination of unrelenting humidity and traffic all a bit too much, plus I was in the grip of a depression which made everything that much harder. So I decided to take it easy and focus on things I enjoyed, rather than forcing myself to be a tourist. I had been looking for some (quite literally) cool cafes where I could escape the heat and throw myself into my work, so I was delighted when my Google research threw up a whole load of gorgeous-looking places. Then I noticed that they all had the same address –…