Win NumPad Positioner is a free application for Windows that lets you position windows strategically on your desktop, helping you save space and making it easier to use them.
To position a window, just select it. Then keep the Super key pressed (the one that has the Windows logo) and press any of the number keys on your keyboard. Depending on what number you select, the window will be placed in that space on the screen.
Win NumPad Positioner is easy to use. It's so easy, in fact, that there isn't even a preferences window or any menus to get in the way as you use the application.