I've always used BetterSnapTool from the same developer, which is basically the window management features of BetterTouchTool as a standalone app.

Not sure why it's not free, when BetterTouchTool is, but I'm not going to begrudge him that one-off payment for something I use every day.

That's an interesting solution, especially since the suggested way for controlling spaces is already a touchpad thing on macs - extending the functionality for windows seems quite natural.

I also love BTT. I have some keyboard and/or trackpad macros that allow me to organize my windows very quickly, to my desired quadrant or half of my screen.