Here's another reason to love the new Photoshop CS 6.
Have you ever had your computer crash while working in Photoshop or have Photoshop lockup on you in the middle of a project?
Open up the Preferences in Photoshop and take a look at "File Handling". Here you will see a new feature to automatically save and recover your work. I have mine set for every 10 minutes but you can set it for 5 minutes. I don't see a reason to have it wait to save for any longer than that.
Great save Photoshop!