Today, you'll learn how to create a get-you-by ride by stuffing a few unlikely items inside a flat tire. While it might sound strange, you can create a makeshift inner tube from almost anything. Just pull one side of the tire away from the rim and start stuffing whatever is handy inside. You can fill a flat tire with leaves, grass, twigs -- even a twisted towel or a rolled-up T-shirt. Push the tire back onto the rim and head for home. It may not be the greatest ride ever, but at least you won't have to walk.