under the palm pilot address book I have (under lastname) also all airport-codes (of my possible destinations) and under the attached notes I list: time diff to GMT, lounge- and 1K-center-locations (and tf#), some restaurants (from Zagat and/or Mobil guide or own experience), best way to go downtown (from my airport transit guide). I enter the dates (having the loud clicks turned off) on my long flights.

In add I have Solitaire-games loaded (also for long flights): from Stand Alone Inc, http://www.powermedia.com