As I was saying two days ago, I have added to my work equipment a magic bag to serve as a heating device. (I ended up not buying a brand-new one at the near-by pharmacy as the heavy price-tag might have forced me to re-mortgage my house, but we had an extra bag at home, so I only had to wait an extra half a day.)

It works wonders, but I was extremely disappointed to read, on the label, that that thing may only be heated four times each day. Which calls for a very strategic distribution of the heating interludes over the course of the day...