Basically you get as pissed as you can in the morning, then act sober and get in to the grounds just on one. Keep a stash in someone's car if you are uber poor, and then rock out from there. They close the gates at 6pm, so careful not to get caught out after 6, or no more conception fun for you.
I wouldnt recommend getting pissed at 8:30am if you are still trying to get an assignment done. I failed mine last year, but had a killa conception day. Finished up at 6:30am next day. Ciel, you must come, skip work or something. Or dont worry if you are a little drunk at work, it's fun to serve while tipsy.