TechBits: Organize your travel plans with Tripit Tripit is useful for frequent flyers who are always juggling appointments, dinner reservations, confirmations - especially if they need to share information with co-workers or family. The idea behind Tripit is pretty simple: Any time you receive a confirmation e-mail, you forward it onto Tripit and the app will organize it into a single agenda for the trip. Flight times are just part of the lineup; Tripit will also remind you when to pick up rental cars, check in or out of hotels and provide you with maps. The schedule you make will sync with your calendar apps and is easy to forward to others. The app is probably most useful for those planning multiple trips at once or those who have a multi-step trip planned. For really serious travelers, there is a $49-per-year pro service that will integrate with frequent-traveler cards and give you rebooking options in case something goes awry. Free, for iOS, Android, Windows and BlackBerry devices; $3.99 for an ad-free app. Hayley Tsukayama