I really should be studying biochemistry

I really should be studying biochemistry. The exam is in less than 24 hours. But I'm fidgety and I leave Monday and my sister is in the holiday spirit, so there are lots of distractions (i.e. cookie dough).
Some info:
We first spend some time in Ushuaia, Argentina (after literally 24 hours in planes and airports; actually, I correct myself, it'll be more like 26 or 27 hours because you have to get to the airport early; yes, so more than a day's worth of travel) .
We will be going on the Polar Pioneer ship for the New Year's Voyage. Yes, New Year's on a boat! .
Then, I will spend a few nights in Buenos Aires (where I hope to pick up some tango moves).

My luggage (left)