If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one. (Immediately before; refresh the list-of-threads page before posting.)
3. Open Threads should be posted in Discussion, and not Main.
4. Open Threads should start on Monday, and end on Sunday.
At work:
Software development: text editors (or IDE) on one screen, terminal/command-prompt window(s) for building, running tests, etc., on another.
Exploratory work in MATLAB: editor(s) and MATLAB figure windows (plots, images, ...) on one screen, MATLAB command window on another.
I use virtual desktops as well as multiple monitors, so things like email and web browser are over in another universe and less distracting. (This does have the downside that when I'm, say, replying to something on Less Wrong, my work is over in another universe and less distracting.) So are other things (e.g., documents being written, to-do lists, etc.).
Of course things may get moved around; e.g., if I'm writing a document based on some technical exploration then I may want a word processor coexisting with MATLAB and a web browser.
At home: email on one monitor, web browser on another. (And all kinds of other things on other virtual desktops.)