Get an invisible grid to Windows, so that any window you move or resize is snapped to it.
Gridy Portable lets you store and restore a window's size and position in up to nine slots. This is useful for quickly arranging your windows in a convenient way. Snapping is enabled with mouse drag or keyboard arrow keys. In addition, you can make any window semi-transparent, hide the window's Alt-Tab icon and set any window to be always on top.