caribbound - use this link to get codes
http://adisney.go.com/disneypictures/pirates/main.html?startLocation=flyingDutchman and after you get the code, click the wheel (in the right corner below the code) and it takes you back to just before the organ, then you click the door and you don't have to play the organ again. Rinse, repeat.
I don't keep an exact count of my codes personally. Usually I keep them in groups of five in a txt file when I organize them so I can tell roughly how many I have. Though I don't do much else on VMK now, except today when I took a break, and this weekend when I took a break for the quests.