I didn't get a soda card but your kids will need to carry around their sign and sail card as it is the room key also. I had two rooms, my kids 7,9,12 were in one and I was so shocked at how well did keeping track of their cards. I sometimes walked out without mine and they had to let me in their room so I could get to mine. We had balcony rooms and we were able to open the partition and walk from their balcony to mine.