Ari's Planet

Getting from one place to another. Plenty of flying. Eventually you start to memorize airport codes. There are aggregators, like orbitz, which I use for most of my US travel. But orbitz has its limitations, as well as a poor cancellation policy for add-ons like hotels (no partial refunds past 48 hours or some such nonsense). There are also super aggregators like mobissimo. For instance, I need to fly from San Francisco (sfo) to Tokyo (nrt), so I run a query on mobissimo and find fares on United, where i have lots of frequent flyer miles for ~$600 one-way. There is also Farecast, which is supposed to help with "buy now or wait" questions, but it relies on the usual sites, like orbitz, and so misses the lowest fares.

Possibly useful reservation sites:

http://mobissimo.com
http://orbitz.com
http://farepath.com
http://kayak.com
http://cheapoair.com
http://farecast.com

International Airline Carry On Luggage Allowances

http://www.airlinequality.com/
http://www.planecrashinfo.com/rates.htm
http://www.bootsnall.com/guides/air-travel-guide/