For anyone traveling this summer I just wanted to post a warning to CHECK the closing mechanism on your crates. My neighbor was (literally) loading her luggage into the taxi that was taking her to the airport and the cat got out as she was being loaded and took off for the hills. If you like you can read more here:

http://www.mytropicalescape.com/2007/07/23/pet-travel/

Remeber to shut the crate door properly…my neighbor missed her flight and will now not leave for another week.

Best.