In this day of age, it's very practical to have a Windows 7 installation on your USB key, for many netbooks and devices don't come with CD/DVD drives anymore.
Mountain Lion enables you to set notification alerts to remind you of upcoming birthdays, tasks, meetings and other important events you might have in your calendar.
You do alot of surfing on your iPad and have a great number of opened tabs in Safari? When you want o close them all at the same time you don't really know how? Well now you will find out.
Mac OS X Moutain Lion and its Safari web browser sharing options allow you to share and send any web page vie email as a PDF attachment in a matter of two clicks.
If you manage a Facebook Page there is a very useful feature you might have missed. You can schedule your posts in advance or you can even date them back down on the Page timeline.