Here's a nice little Mozilla/Firefox tip:
Mozilla has a nice way to view files that are in both your memory and file cache. In the Address Bar, type - about:cache. This will take you to a page that allows you to view a summary of your browser cache and also will allow you to browse the files stored in the cache.
IBM's posted an article about sharing sessions between CFMX and J2EE components. It's obviously geared towards WebSphere, but the general concepts should carry over to other Java applications/classes.