I found these images in my hard disk and I thought that sharing this information will be a good effort, especially to those who have a short-term memory (including me). 

Please click on the image to view it larger. You may also need to zoom them a little bit to get a clearer vision [again, sorry for the inconvenience :(]. Furthermore, to anyone who knows any other computer shortcuts, do post them in the comment box by the end of this post. Sharing is caring peeps :)