You're on the Turnitin website looking at your GradeMarked paper. It has marks you need to mouse-over so you can read all the excellent feedback provided by the instructor. At the same time, you wish to update your paper by incorporating these comments.
How can you quickly arrange these two windows on the screen so you can view both the GradeMarked paper and the paper you wish to correct?
The following writeup pertains to a Windows-based PC. Mac users will need to seek out their own solution. There may be no equivalent function on the Mac.
(Watch Microsoft's 7-second Snap promotional video.) Drag a window to the left and touch the left edge with the mouse cursor—it snaps to fill the left half of the screen. Drag a second window to the right edge and it snaps to fill the right half. Job done!
(The XP/Vista Tiling method 1 shown below for tiling windows horizontally or vertically remains implemented in Windows 7.)
Open a window and position it somewhere in the middle of a screen on a system with more than one monitor. Now, press the Windows key (shown below) plus the right-arrow key. Do it again, repeatedly. Do it with the left-arrow key repeatedly.

Watch the window dock on the edge of the screen, then move to the next screen, docking on it, then to the center of the next screen, etc. The movement is circular, through all of your screens. This is useful for juxtaposing two half-screen windows in a multi-monitor system. See this and other shortcuts illustrated in this video.
Examples of tiled windows follow.
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| Windows Tiled Horizontally or Stacked | Windows Tiled Vertically or Side by Side |
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| Windows XP Menu | Windows Vista Menu |
Note: When you take this action, all non-minimized open windows will be tiled. Therefore, to exclude a window from the tiling, minimize it first—this requires extra effort and is why method 1 is preferred.
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| Windows XP Menu | Windows Vista Menu |