8.
Be smart about how you travel, and if you know you’re going to do certain things ahead of time, always book them ASAP because they’ll be way, way cheaper. For example, I knew that I was going to travel from Paris to London, so I opted to take a Eurostar train instead of a flight. The earlier you book, the cheaper they are, so I spent $65 a few months in advance, but if I had booked my ticket the week of, it would have cost over $250.