Taking a trip to Cuba before it gets completely devoured by tourism? After a little stint in bustling Havana, this is what I found out… You won’t get the Cuban exchange rate the web tells you The Cuban currency is a closed one, meaning you can’t buy it outside of Cuba, and you need to get rid f it before you leave. This gives the Cubans a lot more power over what rate you get. The web told me I’d get 1.24 CUC to the pound. The airport gave me 1.19. There was nothing I could do but accept it to get my transport into the city. I was also told…