Microsoft Windows has excellent keyboard shortcuts that control window size and position and let you easily move window from one display to another (if you have two display setup). When I started using Mac I was surprised that by default Mac does not have any shortcuts that reliably control window sizes – to maximize app I had to use mouse to click on small green circle in the upper left corner of the window. It was extremely annoying especially because I use notebook and often switch between desktop setup (with 30″ external monitor) and tiny 13″ MacBook Air display.
Fortunately there is excellent app that solves this problem – Spectacle. It has all the features that I need – maximize window, move window from one side to another and move window to one of the corners. My productivity was immensely improved from using this small utility.
I did not like default settings for keyboard shortcuts in Spectacle, so I set shortcuts to the one below.