Jason walks into the store and up to the front counter putting both of his Rapiers in front of the man. "I would like to have both of these enchanted to have +2 on them." The clerk dousn't say anything he just takes them into the back and comes back out with magical markings. 4,000 Gold." Jason hands over the gold and the store clerk magically infuses the swords with the markings. There you are sir.