Stay away from the mushroom tea! I had some last year and it put me on my arse for 8 hours, and not in a good way, i completely missed loads of bands i wanted to see!!!
Drinking isnt an issue i dont mind not drinking, though i remember rinsing my mouth with cider after brushing my teeth in the morning last year. Its the doughnuts, pizza and burgers thats the issue for me. lol