Today I came across a file called ~user/.nautilus/saved-session-XXXXXX. In it one could see some sort of logging user's activity via Nautilus. Also in ~user/.gconf/apps/gedit-2 one could find interesting things. Is there a file where Nautilus tracks user's activity?  Is there a file which states files accessed, moved, copied, deleted, etc. via Nautilus?
Where Nautilus/Gnome keeps track or log of user activity?
linux;gnome;nautilus