There is a new feature of Productivity Power Tools 2013 for Visual Studio called Syntactic Line Compression. This feature “enables you to make better use of your screen’s vertical real-estate … [by shrinking] lines that contain neither letters nor numbers by 25% vertically allowing more lines to be displayed in the editor”.
If you want to give this a try, just install or update Productivity Power Tools. The feature can easily be turned on or off via Options.
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