Update March 2013: Added instructions for OS X 10.8, Mountain Lion.
Update October 2014: Added OS X 10.9, Mavericks, to the instructions for Mountain Lion.
Did you know that Mac OS X has a built-in zoom feature? This feature lets you zoom in on your screen so everything on the screen is larger. Of course, when you zoom in you can only see part of the screen on your monitor. You’ll need to scroll around to see the other parts of the screen. Read More from “How to Zoom In on Your Mac’s Screen”