Thanks to the popularity of social media and sharing sites like Facebook, Twitter, and Instagram, photo editing has become a national obsession. Luckily, you don’t have to spend a fortune on expensive photography software to express your creativity. There are a number of free, easy-to-use ways to edit your pictures. And one of these may already be at your fingertips if you’re using Windows 7.Windows 7 improved drawing utility – Paint – is a great...