No matter how much prep and planning you do, every trip is bound to go a little bit awry. However, you can learn from the experience and do things differently next time.
For example, when my original flight to the UK got canceled this summer, I rebooked it for an earlier flight — only to realize on the way to the airport that I'd accidentally chosen a flight for the next day! A phone call to the airline's customer service fixed it, but when my flight back home was inevitably canceled a few hours before departure, I was sure to check the timesSure, I ended up doing a multi-leg grand tour of East Coast airports, but at least I had enough time to make it...