Apply the polish using small circular motions. Dip the old t-shirt or polishing brush into your chosen polish and work it into the surface of the shoe, using small circular motions. Apply a medium pressure and make sure to coat the surface evenly, paying special attention to the toe and heel which get the most wear.
The easiest way to use an old t-shirt is to wrap the material tightly around your index and middle fingers and use them to work the polish into the shoes.
Use a toothbrush or q-tip to work the polish into the hard-to-reach places, such as the edge of the upper and the cracks in the tongue.
You may also want to apply polish to the sole of each shoe, in the space between the toe and heel which doesn't touch the ground