Eating: the last of the leftover soup - yummmm.
Cleaning: the flat in a major way - we're talkin' moving the fridge, oven, etc to find all the dusty/greasy hidey-holes.....
Studying: narrowing down the topic for the next paper/presentation/poster challenge
Catching: up with friends that we've been meaning to see for AGES
Today's Obsession: Clean and tidy