Since starting to use a USB Memory with both programs and files on the same directories, I wanted to get an easy way to backup the data files keeping the folder structure but without copying the bulky program files every time. This was originally a command-line utility, but it seemed like a good candidate to learn shoes and add a GUI.

GUI needs to be prettier, but it works well. Only tested it on Windows, but I think it would work on Linux and OS/X as well.