What if you never had to charge your wireless keyboard? That’s the idea behind the Logitech K750, which uses a strip of solar panels to soak up the light in your office and keep running essentially forever. It’s like the calculator you used in school, but a lot bigger.
It normally sells for $50-$60, but Amazon’s marked it down to $45 today. It has dropped to $37.50 on a few occasions (mostly Logitech Gold Boxes), but otherwise, this is a great deal.