Hi Boateng! Had no idea you did photography part-time -- how cool is that! You need to show us some of your pics sometime! ;-)
A great point to no generalize about how many hours we need .... oh but how I hope to do better and get seven hours for me -- I've been sleep-deprived too many times and it's all my fault. I know that sounds like guilt-talking, but honesty is in order!
Good article - thanks for sharing with us!