We went to the camping store (REI) and bought these huge low profile fanny packs, it has a giant pouch then it has some littler ones for money, passes, etc. It covers most of the front of me and around the sides, no joke the thing is 10 inches down, but its close to my body, it doesnt stick out a mile, I believe it was designed for hiking, but hey, i HATE having to carry anything, all of it around my waist! Water bottle on my shoulder and I am SET!
PS - this year I am puttin my foot down, if the kids wanna bring it? The kids are gonna carry it, 10 and 14 is plenty old enough for Mom to have free hands! Right? LOL