Surprise use: Closing a cut caused by accidentally breaking a wine glass.
It's not ideal, but this heavy-duty glue will work in a pinch. First rinse any blood and debris from the area. "Squeeze the sides of the skin together before applying the glue, and be extremely careful not to get any in the open wound," says Cathleen London, MD, an assistant professor of medicine at Weill Cornell Medical College, and an assistant attending physician at New York-Presbyterian Hospital. The glue should hold long enough for the cut to heal.