I have been using a 15" laptop for dev work for quite some years now. I have an external monitor next to it but most of the time it stays off, only using it to

I have been using a 15" laptop for dev work for quite some years now. I have an external monitor next to it but most of the time it stays off, only using it to test things on large resolutions. There are a few reasons for that: 1. It protects my eyes. I felt much more tired with 2 displays glaring at me all day. 2. Most of the time it's just useless information sitting idle on my second screen. I rarely need to work with 2 windows at the same time and when I do (fe. when coding while reading the docs) I can just fit them on one screen. Though I usually just switch tabs in order not to copy paste and try to understand what I'm reading first. I try to keep my mental load small, focus on what I am doing. I for one I'm not that good at multitasking (and after reading Thinking Fast and Slow I understand I'm not alone) so whatever is on that second screen will steal attention from what I'm focused on. 3. There is really not much "realtime" work I need to do so 1 min or 2 until I check my email/Skype is acceptable. Anyone else doing the same?