This is an excellent reminder that the official policy is that Disney reccomends you bring an alternative form off payment, Identification, and any applicable discount cards(AP, TIW, etc). Yes CM say you can just wear the band, and leave that stuff in your room, but that's not the proper procedure and it's poor advice. The idea is that the magic band is convienent to wear and use, but it's necessary to have those back ups in your wallet just in case - or if you elect to visit one of the very few places that don't take that form if payment.