Why is he putting the socks on the dashboard? Here I am going to introduce you a great tip to use cat litter. I have never thought about this. You can watch the video below to learn how to do it. If you pay attention to the details in the video, you may learn another tip how to fill stuff (sand etc) into socks easily. You not only can use this tip in your car, but also in other places that you want to absorb excessive moisture.