GNOME 2 allows one to either save the session automatically or manually (i.e. save the session as it looks right now). This is a nice feature because it restores the various desktop states between logins (and system restarts):
- which apps were open
- where (physically) on the desktop were they open
- what specific window sizes were these apps set to
Looking around, I can't find the feature in GNOME 3? Did I not look hard enough?