Extending a work trip to Prague an extra week to visit Berlin and Budapest. Because the conference is in Prague, my flights need to be in and out of there if I want them paid for. What's the easiest way to get from PRG to Berlin? It looks like renting a car is cheapest, but I imagine it will be a pain to deal with the car in the city. I'm thinking flying will be the easiest since, you know, I'll already be at the airport, but I'm concerned about IROPS on my inbound flights. Trains are always pleasant, but they will take twice as long. Thanks for any advice you can offer!