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.
The new Adobe Photoshop CC introduced quite a few awesome updates to existing tools and feature. One of the most welcomed ones sure is some of the new Image Resize functionalities, check it out.
If you are a Skype user, it maybe disruptive for you that the program is shown in taskbar, although you don't need it at the moment. I will show you how to remove it from the taskbar.