Pressing Alt+F4 repeatedly closes one application after the other. When the Desktop is reached, it would be nice if then Alt+F4 would open the shutdown dialog. Is this configurable somehow? This way it would be easily possible to close all applications and then shutdown the system using only one hand (as opposed to Ctrl+Alt+Del to show the shutdown dialog which requires two hands).
*** This bug has been marked as a duplicate of bug 424262 ***
I guess it depends on your keyboard, as Ctrl+Alt+Del is easily accomplished with one hand on mine.