Reflow
A Visual Studio extension for reflowing a paragraph of text. Simply select one or more lines of text in the editor and select Edit > Advanced > Reflow Selection or press Ctrl+K, Ctrl+Q. This reformats all the words such that line breaks are removed from short lines and new line breaks are inserted before words that cause the line to exceed 80 characters. Additionally, each line is formatted to match the indentation of the first line. If nothing is selected, the current paragraph is reflowed.
The preferred line length can be changed under Tools > Options > Environment > Reflow.