These little homemade handwarmers are something I would use. They would stay warm long enough to make it to work.
Speaking of handwarmers...
I finally (only took most of the Fall and part of Winter) got these mittens done.
PDF download for sawtooth star quilt This quilt was done by Elizabeth from Oh Fransson. I'm a huge fan of her style. You can find a list of all her tutorials here.
Found this little tutorial/inspiration about wrapping candy bars for gift giving with "presentation".