Use Car Window Cleaner for House Windows

I use gallon jugs of car window washer cleaner for cleaning my house windows. I just reuse an empty spray bottle or buy a cheap one and refill as needed. It works great on cleaning them. In the spring, I use the bug cleaner one and the rest of the time I use Rainex that sheets the rain off the window. It's the cheapest way to clean the windows and works great.