You wouldn't believe how easy it is to display all your saved passwords in Chrome browser, let me show you how to make your Chrome more secure, especially if you let others use your computer.
Windows Explorer does not have menu displayed by default like you were used to in previous versions. To activate and keep it permanently visible follow this tutorial.
Sometimes you don't want your Mac OS X Mountain Lion powered computer to go to sleep, here's a nice little trick how to temporary prevent a Mac from going into a sleep mode.