I have an external 27" 4k monitor connected to my MBP and while I use multiple screens at times, it's only occasionally for productivity. Sometimes I'll have a

I have an external 27" 4k monitor connected to my MBP and while I use multiple screens at times, it's only occasionally for productivity. Sometimes I'll have a chat window open on the laptop just because I'm waiting on a message, but usually, I'll just have Netflix or Youtube running on it to give me some background noise while I focus on work on my 27". The 27" has been a huge productivity booster however. With Spectacle (which I recommend to everyone), I'll have 3 windows neatly placed: the browser, Sublime, and the console. It's a great setup for me. The screen is also the perfect size. Any bigger and I would be drowning in light and craning my neck. Any smaller, and I would not get 3 full working-size windows.