You'll need a few things to make your time at Weekend in Valhalla the best it can be.
By no means is this a complete list, nor do you have to have every item on it, this is a starting point and a quick checklist, pack what you feel you'll need.
Sunscreen
Sunscreen, most events are in Texas so lots of Sunscreen
Tent
Sleeping Bag
Pillow
Air Mattress
Air Pump
Shower Items
Toiletries
Casual Clothing
Plates / Bowls
Eating Utensils
Food and Snacks
Water
Garb
Weapons
Extra Shoes and Socks
Cash
I.D.
Alcohol
Drinking Vessel
Camping Chair
Firewood or a Hand Axe
Flashlight
Batteries
Small folding table
Sunscreen like for real.....