When Microsoft Word first included the Click and Type option it helped a lot of new users who couldn’t work out how to type anywhere on the page.
For those of us used to using WordPerfect 5.1 it solved another problem entirely. It lets you include left and right aligned text on the same line. Double click at the left margin of one line and type a word – it aligns to the left. Now, on the same line, double click at the right margin and type a word – it is right aligned – both pieces of text align and work independently of each other. It’s something you couldn’t do easily without this tool.