In the parks I carry my son's room key with mine in a zippered pocket in my fanny pack. On our recent trip, he did manage to lose his room key, however. He was at the HRH pool while DH and I had dinner at the Kitchen. When the pool closed, he came in to join us (yes, he was dripping wet!) and apparently left his room key on the table. We did not discover this fact until the next morning. He went to the Kitchen to see if they had it (no). He was very upset because he thought he would not have FOTL while DH whisked by him in the lines! I simply went to the front desk with him and got a replacement and was grateful that he did not have charging privileges on his card!