Wearing your shades as a headband is a quick fashion fix, but doing so results to stretched-out frames. To get them back into shape, immerse the glasses in a bowl filled with hot tap water for 1 minute. Then take them out, using tongs if the water is too hot, and slowly push the frame’s arms towards each other. The heat from the water will make the plastic arms (and the metal wire inside) flexible enough to bend back into their original position. And the plastic will set as soon as it cools.