For years, I did what most American travelers do: I called my carrier before a trip, added an international plan, and hoped it wouldn’t cost too much. On my trip to Austria, Germany, and Switzerland last year, that meant going with AT&T, which charged me $12 per day for throttled data, spotty coverage, and anxiety. I accepted this as the price of keeping connected to family and friends.Then, while traveling by train between Salzburg and Munich, my connection failed just as I was about to share photos of the Alps and the Bavarian towns I passed through. This made me wonder: isn’t there a better way?