So. Brazil. I have been back from Rio for two and a half weeks now and I am still finding sand in jumpers I haven't worn since I got home. The tan is fading. The mosquito bites are nearly gone. The 4am Carnival songs have stopped playing in my head, although they pop up uninvited in the queue at Pret occasionally. The trip is now sufficiently in the past that I can write about it; sufficiently still in my system that I haven't yet processed half of it. Twelve days, two cities