My mom and I are heading to the world this coming weekend. We have our Magic Bands, is there anything we need to do to activate them before leaving her house?
Just make sure they are linked to your MDX account, along with everything you want them to access. Nothing is stored on them.
All your info is stored in MDX, the band just links you to your info on MDX.
If you have specifics on what band you want to charge to what cards (like if you want your band to charge to your card and your mom to charge to her card), you can do that at check in.