Pro: I got a little bit ahead on my school-work
Con: I start another course tomorrow so I'll fall behind soon enough
Con: Three of my courses also have labs (well, I AM a biology major, that's to be expected).
Pro: The lab I had on Friday was spent sitting on a lake (in a rowboat) in the sunshine.
Pro: I'll be done in only 3 more semesters
Con: I'll have to work my ass off until then
Con: I haven't even started my research yet
Pro: What I hope/plan to do should be really interesting
Honestly, I have my homework done and I'm already a bit ahead, so I'm just killing some time. :)