I used Fluxbox/Blackbox wm for more than 10 years. It's a great window manager for people who prefer a lightweight system and love to customize their system. Now it was time for a change...
I love to use keyboard shortcuts and many times I need an editor quickly to paste some things. Therefore it would be cool to open the best editor of the world in paste-mode.
Many programms(like chat-clients) use libnotify for telling the user that a new message has arrived. If a notification-daemon is running, a message will appear on the desktop. Most common desktop-environments have any notification-daemons preinstalled. Those services just print out messages for empty batteries or incomming chat-messages or so on.
A very lightweight notification-daemon for example is dunst.