With all the changes taking place with airport screening it is imperative that you know what is allowed before going to the airport. Leaving items at the security checkpoint is, well, rotten.
Of course the TSA has issues, mostly concerning consistency, so they have added a blog to address questions and regulations. I've clicked through the blog and have found the answers to the questions very well explained and helpful in addressing issues and rumors.
Truly a great resource for anyone who flies.