I too used to pack an extra phone charger battery, but I tend to stand on property and have found I never actually needed to use it.The biggest MUST item for me is a water bottle. I'll refill a 20oz water bottle probably 4-5 times through the day.
Conveniences we often take are sunglass cases (especially on days starting early and ending late), hand sanitizer, snacks, cell phone battery packs
First aid station are wonderful, until you are in the middle of the parade or waiting for fireworksWet wipes
small bottle for water
poncho
change of socks (if wearing socks!)
I don't really pack a first aid kit anymore as I've become familiar where all the first aid stations are located. One time the employees at the first aid station gave us a fast pass because of our obvious discomfort!
That is a very good point. A first aid kit is small enough it's probably not worth not packing one unless you are attempting to go bagless!First aid station are wonderful, until you are in the middle of the parade or waiting for fireworksit happens to us and was not good, since a couple of pills won't take that much space I always bring them with me
Going mid DecemberWhat time of year? That can make a big difference on what I pack in my bag or if I carry one in at all!
Going mid December