Here is a list of tips and tricks that every Mac user on Yosemite must be aware of to take his productivity a notch or two above.
Here is a tutorial to help you disable Notifications on the Lockscreen that appear in Mac OSX Mavericks. A Simple, yet effective trick.
Find how easily you can access 43 Hidden Wallpapers in the latest Mac update i.e. Mac OSX Mavericks. Some really good hidden gems are waiting.