Lenovo has been offering laptops without Windows for quite some time. I bought one with FreeDOS because I wanted to run Linux over 10 years ago. Really nice that they do that for you now.
Nothing for me here. But I am still always happy when someone posts their little tools and scripts, because I have discovered some neat stuff that way over the years.
With modern LED lights I read that it might be better to just keep them on because heat cycling reduces their lifespan, forcing you to replace them and thus costing more money than the electricity would cost.