Transcription: Now, undo will save you most of the time. About 90% of the time you will be able to recover from mistakes you've made with undo. Once in a while though, you'll find there's a command that you won't be able to undo. And if perchance you've been working for hours and hours and hours, Microsoft Word might not remember what you've done 301 actions ago. So it is important that you've been saving every time you breathe because sometime you're going to do something to your work that can't be undone. And this is when you start feeling like you want to kill your computer.
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