@Lucy, I love coloring! I always found it to be such a stress reliever. I remember buying myself a coloring book in college when finals were intense.
Decided to work from home today and tomorrow as I really want to do my preliminary defense before mid-November, which means writing the preliminary proposal (~100 pages) and making the presentation and scheduling with my committee, getting the paperwork from the grad school and more... Being at work seems to be more distracting as I'm the only one in the lab right now that knows how to do the new techniques, so even though I've taught the others how to do it now, when I'm right there I'm the focus of a lot of questions. So... now i'm off to try to get my own stuff done!