Ever start an application and for some weird reason it is running OFF the screen? Well there is a very easy solution to getting it back on in 2 easy steps:
#1-Make sure the offending application has the focus by clicking on it in the task bar.
#2-Next press WindowsKey + Left Arrow until it shows up ON-screen again!
That was easy. Also using WindowsKey + Arrow will move an application from one monitor to another as well.