Spectacle has keyboard shortcuts - in fact, I think that's all it has. All I use it for at least. The first command sets the window to 1/2 width (or height), se

Spectacle has keyboard shortcuts - in fact, I think that's all it has. All I use it for at least. The first command sets the window to 1/2 width (or height), second tap sets it to 2/3, third tap sets it to 1/3. Works great for me. Also I should note it's OSS.