CursorUS is a simple utility that allows you to navigate your desktop with continuous movement of the mouse, by extending it beyond the screen borders. If you move your mouse off the right edge of the screen, it will appear on the left edge, eliminating the need to drag it all the way across your desktop. The same works with the upper and lower edge of the desktop. You can disable/enable the effect as needed. It takes a little getting used to, but can help you work more efficiently.