TIm O'Reilly mentions TripIt, an upcoming service for frequent travelers that sounds like an opportunity to automate several chores. He quotes TripIt CEO and Co-founder Gregg Brockway:

With TripIt, you simply email us your travel confirmation emails and we do the rest. First, we’ll automatically add the basic information you need to make almost every trip easier, such as maps, weather, directions, destination info and more. Second, we’ll help you share your travel plans with the people who need to know—friends, family & co-workers. Third, with a consolidated view of your plans, we can anticipate user needs and make relevant suggestions. Finally, by integrating with the applications people use most, TripIt will give you access to the right information when and where you need it - online, in print, via mobile, or in your calendar.

Any comments on user/customer experiences so far? The company is up since October 2006, so probably not.