The dog ate your license. Or it was stolen. Or it was burned in the fire that ate Gramma’s house. Just go to the DMV, and bring a proper photo that they can verify. They have to know that you are you. And they’ll hand you a temporary license, and then mail you a real one later. Be careful, though, because no more than 3 duplicate licenses will be issued for the term of your license. Lose it too many times and you’re taking the bus from now on.