If you work some of the time on your laptop and some of the time on your desktop box, making sure that your work is updated on both machines is a must. Many tools can help you accomplish this, from command-line tools such as scp and rsync to generic graphical applications like Konqueror or Krusader, to more specific tools like Unison. Komparator and KDiff3, a couple of KDE applications with interesting features, may offer better ways of syncing your work.
Komparator can search and synchronize any two directories. It uses KIO slaves, which lets you compare not only standard directories, but also protocol-based pseudofolders such as smb:// (Samba folders), ssh:// and ftp:// (remote directories via SSH and FTP), and fonts:// (local fonts). Its latest version is 0.8, dated from October 2007, and it’s available under the GPLv2.