You see, in September, I would brew my full travel mug of coffee (12 oz) and carry it with me to class all day. By the end of the day, I often still had half a mug left. Which was quite annoying, really, because it meant I had to constantly worry about whether or not the coffee was dripping into my backpack or onto my clothes while carrying it around. Also, it was a bit wasteful.
Then, around December, I noticed I was taking advantage of the microwaves and mugs in the student lounge and reheating the second half of my coffee after lunch to get me through my last few hours of classes. This was less wasteful, but meant I then had to hand-wash my borrowed mug after using it.
Now, it is February, and I have developed a habit of not only finishing my entire travel mug of coffee before noon, but also paying $1 to re-fill it at the student market after lunch. I have yet to consume this entire second round of caffeine, thus repeating the annoyance of transporting it back home while worrying about it potentially spilling (especially tricky on the over-crowded bus).
If history is any indicator, I predict by the end of this term I just might be consuming two full travel-mugs of coffee each Monday. Not great, but not horrible either. However, my real concern is for next term, when my 8 hr class day transforms into a (drum roll please)... 12 hour class day. I just may need to upgrade my travel mug to Big-Gulp size.