I think it's probably best to work out in the morning to get it out of the way. My ultimate top tip is to drag yourself even if you have to roll yourself out of your bed and in to a sit-up - it's really not that bad once you start.
The thing about Hemingway that people forget is that all the stuff he did was at a time where people weren't traveling that much. At 19 he travels to Italy. He goes to the Spanish Civil War. He goes to China he goes to Africa so at that time to travel that much is really incredible.
