I bring, in a small Disney backpack:
-small first aid kit, containing: bandages, blister bandages, hand sanitizer, tweezer, lip balm, tissues, wet wipes, SPF wipes, Shout wipes, and insect repellent wipes
-camera and extra film
-bottled water and Crystal Light To Go packs
-small towel for drying off seats, sitting on at parades, etc
-cash, tickets, and driver's license
-rain gear: Dollar store ponchos and umbrellas
-sunglasses and hats for me and DD
-autograph book and fat pens
-daily itinerary cards with ADRs, general schedules, etc (I am a planner!)
Wow!!! It seems like a lot, now that I write it all down.