By default all banners from the Notification Center stays 5 seconds on your screen. You can adjust how long Notification Center banners are shown before they disappear. To do this use the following command in OS X Terminal:
10.8
Give OS X a flatter look inspired by iOS 7
The default theme in OS X still has, despite the change in iOS 7, lots of shades and gradient effects incorporated in the theme. This can be disabled by using a terminal command and give the finder window and a few other programs a flatter look. The resulting appearance is flatter and whiter window that’s showing brighter colors and less shadowing. Add the following command in Terminal:
Safari: Highlight Non-Retina images
In OS X 10.9 Mavericks Apple didn’t hardly changed the Dock, yet you can adjust the design slightly using a terminal command. It’s possible to give the dock a transparent look. Add the following command in Terminal:
Twitter: Show full names in Timeline
it’s possible to enable some hidden features for the ‘Twitter For Mac’ application with some Terminal commands. With the following command you can enable to display the full names of your followers in your timeline. Close Twitter and add the following command in Terminal.
Disable Notification center in Mac OS X Mountain Lion
If you don’t like the new notification center feature in Mac OS X 10.8, you can disable it (for all users on system level) with the following defaults write command.
Disable the ruler in TextEdit by default
If you regularly use TextEdit, you will notice that TextEdit displays the ruler by default when creating or opening rich text documents. It’s not possible to turn off the ruler by default in Preferences. Offcorse you can You can disable the ruler in TextEdit with the following OS X Terminal command:
Disable two-finger swipe gestures in Chrome
You can use the the swipe gesture in Chrome to go back or forward on a page, just like in Safari for OS X. Use a two-finger swipe to the right to go to the previous page and a swipe to the left to go forward. You can disable the swipe function in Chrome with the following OS X Terminal command: