Triathlon: What to Bring to a Race

Here is a list by USAT with a couple of my suggestions at the end...turn it into a check list.

General:
USAT Membership Card (or your one-day pass if printed from a website)
Photo ID
Registration confirmation
money
race uniform
race numbers and timing chip
gels/energy bars and drinks / salt tablets
sunscreen
sunglasses
water bottle(s)
anti-chafing product
extra clothes
directions to venue/course map

Swim Gear:
Westuit
swim cap
goggles

Bike Gear:
Bike
helmet
bike shoes
socks (optional)
bike gloves (optional)
tire pump
spare tube(s) and tire
CO2 cartridges
tools

Run gear:
running shoes
hat/visor
race number belt
socks

Transition gear:
towel(s)
bucket to wash sand off feet if beach swim

Other:
flip-flops
camera
flashlight or headlamp