The unused power of a Wi-Fi router is the Internet channel that you do not use, but for which you regularly pay to the operator. For example, a standard home router can handle 10 to 15 devices (or more). Even if you watch Internet TV, use three laptops and five smartphones at the same time, part of your IT channel will remain idle. However, you have already paid for this channel. And you pay for it from month to month. On average, a modern user pays $6.37 a month for the Internet - this is $76.38 a year, and your channel is used on average by 10% of the available capacity.
Walk to make money (some sort of crypyo-coins actually). Sweatcoin is an app that will give you points for exercising outside. Once you download the app onto any iOS device they will begin tracking and verifying your outdoor steps using GPS. Then your steps are converted into sweatcoins. Their goal is to get people out of the homes to enjoy the outdoors, and they are sponsors willing to pay you for it. With sweatcoins you can purchase items such as yoga classes, high-tech shoes and even iPhones and Apple Watches.