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(Image: My Trips)
Platform: Windows Phone 8
I travel about once a month for work and find the TripIt service to be invaluable. I have gotten enough in flight fees credited back to pay for years of TripIt Pro. The official Windows Phone app is not very good though, but thankfully there is a great alternative in My Trips.
You can leave the paper behind and view all aspects of your trip itinerary with My Trips.