Just saw this via Reddit and thought people might find it helpful. You can use a snippet of javascript in the browser address window to make a page's content editable on-screen. Doesn't affect the original server's code of course, but you can do a quick tweak to see what effect more or less text can have on layout, stuff like that. Full article: http://azure.ironie.org/291-edit-any-web-page-in-a-browser