Jay Meydad's Life Mashup

I logged into the Disqus console today to change some settings and noticed a new feature. The settings pages do not have a visible “Save” and “Cancel” buttons.  Instead, only if you change a value/option on the page the buttons float and appear from the bottom of the visible area. This is a big usability improvement as it eliminates the need to scroll all the way to the bottom of the page and hit save. I think this is very innovative and very cool. I have not seen this feature on other website but I am sure it will happen soon.