Anahata's Purpose Attendees

Hey y'all! My name is Wish and I'm sooooo happy to be attending AP. This is my first year, and I was wondering if the veteran attendees would be willing to share some packing tips. I have specifically 2 questions and one that's not super serious:

1. Does it get very cold? How cold-weather prepped should I be? I am no virgin when it comes to festivals but I AM a chronic over-packer. I'm travelling in from NC and would like to avoid that this time.

2. What are some things you've brought in the past that were unexpectedly useful?

3. What is on your "absolutely do not forget this" list?

Thanks y'all! I cannot wait to be with you all by the river!