No more having to drag and drop windows. This awesome windows management app snaps windows in various configurations like:
Side by side
And even the corners!
You can also minimize, maximize windows - checkout the list of shortcuts:
Set your Terminal window to be slightly transparent
This tip effectively allows you to get another layer of windows so that you can reference materials underneath while typing into vi/vim like this:
Go to Preferences > Settings Tab > Window > Background > Color & Effect settings to set it. I have mine set to 80% opacity, see what works for you.