you can use win+shift+left or win+shift+right so move windows across monitors.
it also works with win+left/right to move things to the left/right of one monitor and then again to jump across to another.
it also works with win+left/right to move things to the left/right of one monitor and then again to jump across to another.
It doesn't work with a Chrome window though, since it seems to override those options.
I have one app that always ends up off screen when I disconnect my external monitor and I could never find a definite way to get it back.