EFB

Typically, you can use Briefcase Plus for synchronization between your computer at work and your computer at home, or between your desktop and your portable. You will work on one computer, then load the briefcase (with your modified files), and take it to the second computer. There, you will unload the briefcase, updating all these files on this second computer.
Then you can work on this second computer, and load the briefcase again afterwards.

Improvements in this version 2.0:

Better progress indicator
Improved New Briefcase Wizard
Improved interface
XP Visual Styles
Solved several bugs

Remarks:

You can also use Briefcase Plus for making an "incremental" backup of one of your folders into another folder on the same computer.
Briefcase Plus allows complete control over the folders and file types to be included in the backup operation, including masks for both including and excluding specific file types (using wildcards).
Once a project specifying the folders/file types for a briefcase has been set up, the configuration can be saved with the briefcase and recalled later for automatic synchronization.
Folders may differ on different computers. You can for instance use a c:\data folder on one computer, and a d:\projects folder on another. A briefcase can detect which computer it is opened on, and then use the corresponding location.