allContentMinimize is a simple and elegant plugin that lets users minimize content displayed in the main content area of a site. This extension places a "minimize" button next to the other optional icons (pdf, print, email) which if clicked, shrinks the content to one line. This is mostly a cosmetic feature which can make a page much more readable.
This page is a functioning working demo. Just click the up arrows (located at the top right of the allContentMinimize logo, just above 'free') to minimize, and again to do the opposite.
This plugin is free and fully functioning.
Download allContentMinimize for free.