Xfce's Configuration System
Xfce's session manager
Xfce's panel
Power Manager for Xfce
Xfce's window manager
An easy to use CD/DVD burning program
Calendar for Xfce
Modern, fast and easy-to-use file manager for Xfce
Maybe a Gnome shell like dashboard for Xfce
Xfce's desktop manager
Widgets library for the Xfce desktop environment
Windowing concept abstraction library for X11 and Wayland
Freedesktop.org compliant menu library
Application launcher and finder
Automatic management of removable drives and media for Thunar