On my Classic, the only extra from the Extras menu that I actually use is games. So I've taken the "Extras" option off my main menu. But before I even forget it's there I want to know if I'm missing out on anything useful there. I don't need my contacts there because I have my cell phone, same goes for clock, and alarm. I don't use iCal enough to make calendars useful, I can't think of a time when I need a stop watch any more precise than the clock and alarms on my cell phone. The only extra I think I might eventually be able to find a use for is notes, but I can't actually think of a way that it'd be useful so far.
Which extras do you use and how do you use them?
Which extras do you use and how do you use them?