I've always kept up with the money and just allotted a certain amount for each child. My oldest son (who's 19 now) isn't going with us this time. It always got kind of confusing keeping up with who had spent what, and how much each one had left. This year, I'm thinking about linking a certain amount to my 12 year old's magic band, and letting him keep up with it himself. He's pretty good at managing his money. My question is this: What is a reasonable amount of spending money for a 12 year old for a 10 day trip? We have the DDP, so his money will strictly be spending money for souvies, extra snacks, etc. Thoughts?