People packing more and heavier into carry-ons. Guess that means sales of pocket knives will soar since you can't carry those on, must check.
From AA:
Customers who purchase domestic economy class tickets on or after May 12, 2008 but before June 15, 2008 may check one bag for free and check a second bag for $25 each way. Customers who purchase domestic economy class tickets on or after June 15, 2008 will be charged $15 each way for the first checked bag and $25 each way for the second checked bag. Our carry-on policy of one personal item (such as a purse or laptop bag) plus one bag remains in place.
The following customers will not be charged a service fee to check a bag provided the bag is within the weight allowance:
* For the first checked bag, customers who buy a ticket before June 15, 2008, or who fly before June 15, 2008
* For the second checked bag, customers who purchased a ticket before May 12, 2008
* Customers originating travel in the U.S., U.S. Virgin Islands, Puerto Rico or Canada and traveling to an international destination beyond the U.S., U.S. Virgin Islands, Puerto Rico or Canada
* Customers originating travel outside the U.S., U.S. Virgin Islands, Puerto Rico or Canada and traveling to an international destination
* Customers who purchase full-fare tickets in Economy Class
* Customers who purchase Business or First Class tickets
* Customers flying on AA codeshare flights not operated by American Airlines, American Eagle or AmericanConnection®
* Customers traveling on government or military fares
* Military passengers on active duty
* AAdvantage Executive Platinum®, AAdvantage Platinum® or AAdvantage Gold® members
* oneworld Alliance Emerald, Sapphire or Ruby members
* Customers flying on the same reservation as an AAdvantage Executive Platinum, AAdvantage Platinum or AAdvantage Gold member or oneworld Alliance Emerald, Sapphire or Ruby member regardless of frequent flier status or fare type (not applicable to group bookings)
* AAnytime® Economy Class AAdvantage award tickets, MileSAAver(SM) or AAnytime First and Business Class AAdvantage award tickets
* First and Business Class upgrades confirmed prior to check in
* AAirpass travel