If you’re about to buy new hardware just to unlock one extra feature on your PC, hold off — you might already own a gadget that does the same thing without you even realizing it. I’ve been eyeing a webcam, a second monitor, and an MX Master mouse for a while, but I’ve held off because buying all three would be a hefty expense. So I took a step back and wondered if there was another way. And, as it turns out, I managed to save a couple of hundred dollars by repurposing hardware I already owned with the help of free software.