For a one-day, all-day relay:
NON-RUNNING
Crocs/flip flops
Compression gear
2 changes of clothes (for between legs and after last leg)
Sweatshirt or light jacket
Cell phone chargers
Ibuprofin/medications
Towel
Baby wipes
Small first aid kit
Sunscreen
Toilet paper
Notepad/pen
Manual
Energy Snacks
Lunch item (PBJ or?)
Chapstick
Deoderant
RUNNING
2 pairs of running socks
2 running outfits
2 sports bras
Shoes
Team Sparkle skirt
Hat/headband/visor
Sunglasses
Handheld or fuel belt
Nuun
GU/Clif Bar, etc.
Garmin/watch
Anti-chafing lube
Jugs or bottles of water