Jump to Track Plugin
Submitted by Kip
XMMS had a feature integrated that allowed you to hit a hotkey and a window would pop-up allowing you to quickly type in the name of a track to start playing or enqueue it. It was called the "Jump to file" dialog.
This was useful because you didn't need to find Rhythmbox in the notification area (or rather indicator applet now) in GNOME, then select the search with the mouse, and then type. You didn't need a mouse at all.
If I knew more Python, I'd write it myself.