I almost always want only one window available (except terminals) - but don't want to have to think how to get to the other ones. When doing web development, I

I almost always want only one window available (except terminals) - but don't want to have to think how to get to the other ones. When doing web development, I generally have some terminals open, my editor, and my web browser. If I use alt-tab, I need to remember which window I came from most recently - with xmonad, I _know_ alt-1 gets me to terminal, alt-2 to editor, alt-3 to web browser. It's minor but it is something I have to do hundreds of times each day, and avoiding the minor irritation of having alt/cmd-tabbed past the one I wanted is worth it.