I like to seperate any food or snacks from the main compartment of the cooler in zip lock bags or old plastic grocery bags so it doesn't get wet as the ice in the cooler melts.

Plenty of ice in the big cooler. I always know where the ice machine is. The extra ice is always useful for those who don't bring enough or cool players off.

Smaller personal size cooler for water bottles and food that doesn't go into the shared team pool.

Frozen wash clothes/towels to cool off players during the day.

Plenty of Advil/Aleve for headaches during the day.

Extra socks/cleats for my son and myself. The grass fields are always wet during the morning games and tends to be cut high.

Hats, suntan lotion, bug spay.