Just keep in mind that there is a good chance on a college campus that whoever you randomly ask is also cranked on caffiene and is likely to answer "yes" just to watch you freak out ... and if you are really lucky (unlucky?) their friends will also be on an overdose of coffee and will ask you "who are you talking to?"
*laughs* That would have been my best friend and I during college. No need for caffiene.. we were naturally "gone"... Still are now and then when we get together.
As for tests.. you're supposed to study right before you go to sleep and right after you wake up.. Never worked for me. I never really studied. I would glimpse over my notes and the book, then start to freak out about all the stuff I didn't know.. or wouldn't know.. I'd get stressed.. close the book and say "Screw it, I either know it or I don't" Usually the little glimpses over my notes and books, jogged enough "memories" that I managed. I averaged B's on most subjects I hated and A's on most subjects I liked.
Subjects like History that required you to remember "trivia facts".. I didn't do too well at. My head just doesn't hold that kind of information.
Interesting fact regarding coffee and caffiene overdoses:
It takes approximately 100 cups of coffee, ingested over the course of 2 hours, to obtain a high enough concentration of caffiene to kill an adult human. Of course, you're likely to drown first.