Today I took the first of (I think) six tests in my discrete optimization course. I studied out the ying-yang, and the test certainly wasn't as hard as the one I studied for! That doesn't mean I aced it, of course, just that it wasn't as hard as I thought it would be. I'm convinced I didn't make any egregious "strategic" errors; any mistakes had to be of the "silly" or "bad calculation" variety.
I usually devote 2 hours each night to my master's program, but not after a test. I take the test and then take the rest of the evening off. Watch out, single people, I'm free tonight!
(OK, so I'm headed to Walmart to get some groceries. Whatever.)