I agree that laptop in lap is more comfortable than on table. However, that brings in the problem of the screen being too low. Ergonomically, I should be able to see my screen without tilting my head down. I'll just deal with it at school, but at home I want to be as safe as I can (I've had serious problems before).
I'm toying with the idea of a laptop stand, but I think it will work better for me to put my laptop up on some books and my ergo keyboard down on my keyboard tray.