Don't worry if every item on your itinerary doesn't go quite as planned on monday and tuesday. Unexpected events and mix-ups: even fortuitous seat reassignments: can be the best part of an otherwise by-the-book trip. On wednesday and thursday (and into early friday) you can expect others to look to you for guidance. Don't be afraid to grab your maps and guidebooks and take charge: you're the one with the answers right now. From friday night through the weekend, the details are all-important, so try to be extra meticulous.