Lenovo laptop, always with the lid closed.
A single 21" (at work) or 25" (at home) screen.
Linux Mint desktop, so, one taskbar and really thin.
I have a 3x3 workspace grid. I normally organize as following:
I've used two displays for some time (laptop + monitor), used to use the laptop's one for terminals.
Stopped this habit since displays tend to have different resolutions and your eyes have to adopt, bend you back, etc. Not a good idea. Although, many people have really good, long and strong arguments about it.
Also, laptop keyboards are not as comfortable for coding as a normal one, so, having the laptop in my hands was neither an option.
Over the time, one gets really fast changing workspaces, and is better over Alt+Tab, since you always know for certain where's that program you're looking for.
Also, once people in your team know the thing about the workspaces, pairing is really easy. The keyboard is easy to share/move around, the place where people look at is "in a mid point" and we stay focused in one position.
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