Backpacks, Purses, and Fanny Packs...yes I said fanny packs.

[Dopey's Girl]

If it can't fit in the pockets of whatever I'm wearing, it isn't coming with me. I have what amounts to an oversized coin purse. It has room for money, park pass, small lotion and some necessary pills.

I have 2 cameras (only one comes with per trip depending on the length of the vacation) one is bulky, so for that I have a strap that I can wear across my body (made it myself from a spool of ribbon from the target dollar section...no need to spend lots on a fancy strap!) the other is compact, so it goes in the pocket too. It's just easier as far as dealing with it on rides and such.

If there is something I'm missing, I either don't need it, or I buy it!

[Seasonscraps]

I keep it light..I use a mickey mouse wristlet that holds my camera, ID, card key, cash, lip balm and pocket tube of advil. I can be hands free when I need to and it's easy to hang onto on rides like Aerosmith.

[passholderryan]

As one of five kids we would go to Disney every other month. Everyone of us had our own fanny pack and would carry our own poncho Disney Dollars, and snacks (Fruit roll ups, candy, crackers).
Now my wife and I only take what fits in our shorts (cargo shorts). Unless we know its gonna rain, then we might bring a small backpack for ponchos and stuff.
Our first kid is due in five weeks, (Oct 7th). This is where things will change. The planning has already begun, with me picking the stroller. I picked it specifically with Disney in mind. I went with the Chicco stroller. Comes with plenty of room underneath with cup holders for everyone, including us. How else are we gonna be able to enjoy the Wine and Food Fest??!!!!!!!!!!!!

[Toughbug]

My Disney fanny pack, I mean utility belt, keeps the passes, small first aid stuff, black sharpie marker, and loose change in the front small pocket. The back large pocket has four cheap dollar ponchos, small gold bond powder, sanitizer, reporter's notebook and pen, autograph book with fat pen, camcorder battery and tapes, and 35mm film. My wife's small backpack has maybe a sweater for DW and DD, and a couple of small water bottles. We usually strive to bring less things and make the kids bring their own stuff in their own pack.