This needs no explanation.
... But I'll indulge. Friday combines the anticipation of *almost* being done with the week with the satisfaction of finally being done with the week with the luxury of finally being able to relax. What could be better?

Of course I have no such luxury anymore (since I started med school), but I remember the feeling. And only having to study on Saturday and not go to class too is at least *something* to look forward to... I guess...