Back in late June I wrote a few blog entries about some new features in CFMX for working with session variables. Since then, I've written an article in the August CFDJ, "New Possibilities for Session and Client Variable Handling in CFMX". You can read it, and all my articles, online at http://www.systemanage.com/cff/articles.cfm.
Whether you're using CFMX or not, there may be things that you learn in the article that may surprise you about how session and client variables really work.
Are you thinking, "I already know about J2EE session variables"? That's not what this is all about. It is indeed one of the three new features, but the other two aren't dependent on that one and are of value to any CF developer. One of them doesn't even require any change to your code to obtain substantial benefits. The features covered are:
The New URLSessionFormat() Function
Using a UUID for CFTOKEN
Using J2EE Session Variables