Actually, I'm pretty certain only one band per person is "active" at any given time. You can change them if you want to, but you'd have to stop by the front desk to do it. We had three sets for our trip too but only used one set. We'll use the same ones on our next trip too. Hoping Disney adds a "Do you already have Magic Bands" question when making a reservation. A person can only use so many rubber bracelets. :/ Plus it's a total waste of money on their part.