Ever since my business travel became directly sync'd with TripCase, I've stopped printing out flight/hotel information, since I just have to open the app to get all the details and it even updates to show revised flight timings in case of changes/delays. Of course in case of that I do also verify with the airline, but it's a handy app and works offline, so I don't have to trawl through my email to find what I need. I do check before I fly that everything is in there, and will still print out information if I'm heading to a new location (most of my travel is just to our company offices in US/EU), or for countries like India Philippines where you might need to show your itinerary just to enter the airport.