Smart shoes have been around for a while. They can show you GPS directions and even track your activity. But wouldn’t it be nice if you could control things in your home or outdoors using your feet? Dorothy has you covered. Once you slip the Ruby into your shoe, you will be able to execute commands by tapping your heels. For instance, you can generate a fake call to get out of tough situations. You can also summon an Uber with your feet. The possibilities are quite exciting here.