Don't let the other one collect dust! Periodically charge something small on it to keep it open, and then in 6 months you can combine the amount of available credit from the old one onto the new one and end up with a big one! 
Don't let the other one collect dust! Periodically charge something small on it to keep it open, and then in 6 months you can combine the amount of available credit from the old one onto the new one and end up with a big one!