JoeBob,
Exactly what I did with my MD, and I have to convince my wife I'm not crazy - My MD TOLD me to keep Vicodan in the house, and to basically ignore the expiration date if I kept them cool and dry - my wife keeps wanting to throw them out (they are more than 6 months old (gasp)). Amazing how well they work when you suffer from kidney stones (he doesn't want me to have to suffer while waiting for him)