I think I will be using the KTTW card to charge purchases to my room this year. If my boyfriend decides to do the same, can we keep our charges separate or do they have to all be on one bill linked to our room? It would be much less of a headache if I can have my own purchases charged to my Key and his charges charged to his but since we are traveling together in one party according to Disney, I don't know if this is possible. Anyone have experience with this?