Some of you might already know all of these. But I sure didn't. It was #7 and #6.
http://lifehacker.com/5817644/top-10-secret-features-in-mac-os-x-lion
10. Add New, High-Quality Text-to-Speech Voices
9. Look Up a Word in the Dictionary with Two Taps
8. Create Search Tokens When Searching for Files
7. Group a Bunch of Items into a Folder
6. Add an Event to iCal by Typing a Phrase
5. Share the Screen of an Inactive User
4. Manage Privacy Settings for Any App
3. Automatically Restart When the Computer Freezes
2. Fully Migrate from Windows to Mac OS X Automatically
1. Easily Add a Signature to a PDF Document in Preview
Enjoy.
http://lifehacker.com/5817644/top-10-secret-features-in-mac-os-x-lion
10. Add New, High-Quality Text-to-Speech Voices
9. Look Up a Word in the Dictionary with Two Taps
8. Create Search Tokens When Searching for Files
7. Group a Bunch of Items into a Folder
6. Add an Event to iCal by Typing a Phrase
5. Share the Screen of an Inactive User
4. Manage Privacy Settings for Any App
3. Automatically Restart When the Computer Freezes
2. Fully Migrate from Windows to Mac OS X Automatically
1. Easily Add a Signature to a PDF Document in Preview
Enjoy.