[staktrace]

For those interested, there's a book on this topic that is excellent and provides 8 postures improvements (complete with pictures) that will help keep pain away. http://www.amazon.com/Steps-Pain-Free-Back-Solutions-Shoulde... - there's also an Authors@Google talk by the author on Youtube (http://www.youtube.com/watch?v=-yYJ4hEYudE) if you want a taste before buying the book.