Method to save application state just before quit

I am using the user preferences to save the state of my game so that when a user goes away and comes back, it comes back at the same place they left. However, I am saving to this every turn. Is there a better way of doing this. Putting it in the applicationWillTerminate method maybe? If so, I'm not quite sure how to accomplish it there. Can anyone give any advice on this?
Thanks.

I made it work by setting up the MainViewController as a class and a variable in the Application Delegate. Then once the MainViewController was established, I called a method I put into the Application Delegate to set that variable to "self" (meaning MainViewController instance). Finally, in the applicationWillTerminate method of the Application Delegate, I used that variable to call the save method in the MainViewController.
Perhaps this is difficult to follow without seeing the code, but does this sound overly complicated, or about right?
Thanks.

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[email protected]
Message was edited by: macjack

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Method to save application state just before quit

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