You can do more than that per month, even if you've never participated in sports in your life - see my comment above: http://news.ycombinator.com/item?id=200816

You can do more than that per month, even if you've never participated in sports in your life - see my comment above: http://news.ycombinator.com/item?id=2008164 http://news.ycombinator.com/item?id=2008164