Are you looking for a simple way to improve your productivity at work? Just buy a second computer screen. It’s a proven fact that the more screens you have, the more efficient you are. (Or at least that’s what your boss will think.) But what about when you travel? It’s hard to pack two additional screens into a laptop bag. What if your laptop could have a secondary fold-out screen to help you better multitask and increase productivity? In a recent video, YouTuber DIY Perks illustrates how to construct a dual-screen laptop.