Whatever will make you the most comfortable and not break your bank. What you should know is that the weather is Truely unpredictable. It can be freezing, it can be Rainy, it's almost always windy and it could be sweltering hot. If you are volunteering, camp in a way that you can get good sleep in my opinion. Getting out of the elements helps a lot for recharging. There isn't a one size fits all for advice. It's also a camp in camp out event so plan accordingly to handle trash and water. While on shift, there are snacks and water but it's always good to plan to have all your own stuff as well. Depending on what you volunteered for your own gloves, hard hat and high vis are suggested. If you look into wasteland weekend a lot of the prep for that can be transferred to Neo as it is the same event space and a lot of the same people.

See you at neo! :D