Dual monitors are useful for a lot reasons, even if they don't actually affect productivity. Buying a second monitor is straightforward if you're working from a desktop computer, but it's much trickier with a laptop. YouTuber DIY Perks shows you how to build a second monitor from recycled parts that works great with a laptop.
The project here takes an old laptop screen and a control board, mounts those to a piece of wood, then wraps everything up in a vinyl sticker. The whole project cost him about $US25 (Note: parts may cost more in Australia), but your mileage will vary since it's all secondhand parts. Either way, the end result is a pretty handy little second screen that works great for those rare moments when you need a dual monitor setup with your laptop. Tablets work great for this too, but if that's not an option, DIY Perks' project is worth a closer look.
The end goal of productivity tips is to spend less time doing the things you have to do so you gain more time for the things you want to do. But if you follow every morsel of productivity advice you encounter, you'll end spend more time moving papers and emails around than actually getting anything done. Need to simplify your routine? Let's put an end to some common productivity myths once and for all.