AlwaysOnTopMaker is a very, very simple program that is only 6k in size, and does only three things: (1) makes a window always on top when you press Control + Alt + T, (2) Control + Alt + Q exits the program, and (3) displays the message "Already Running..." if you try to run it after it's...already running. That's really all there is to say. It's an incredibly useful tiny little app.
One more thing though, this app works on programs that don't have a standard titlebar, such as iTunes. Programs like Winroll or Glass2k work like this program, but they require a normal titlebar, whereas AlwaysOnTopMaker works on everything.