Weed - came high a few times, but only enjoyed one experience. It was some bomb ass weed though, and it made my school day great. I was laughing so hard at things that weren't even that funny, and people would stare at me suspiciously.
opium poppy tea, hydrocodone, and tramadol - I come on this stuff quite often, especially tramadol since it has that stimulant effect that helps me concentrate.
benzo's and sedatives - few times came drunk. sometimes i take a little xanax, valium, or phenobarbital.
Other pharms, supplements, etc - I'd also occasionally take some coldagins, neurontin, wellbutrin, benadryl, st johns wort, yohimbe, DMAE, DHEA, gingko biloba, meclizine, sertraline, ephedrine, kava kava, pregabalin, l-meth, caffeine and other stuff to help me get through the school day painlessly.
DXM - use to come often on it as a freshman. made school kinda fun.