The danger of booking a trip six months out is that you have six months to go crazy with planning. We’ve only had our trip to Eastern Europe booked for a week, and already our emails, gchats, and texts to each other have been a flurry of what to do and see on our trip… in six months. This much we know: while we’ll make Vienna our homebase, a la this post, we’ll also make small side trips to the surrounding countries and cities. Our insatiable need to see as much as possible makes narrowing down our stops tres difficult…