I've just had a brainwave.
I've been sitting in my office all day writing and, despite the heating being on, my hands are freezing.
I just nipped to the loo, washed my hands and noted how the hot water warmed them.
This got me thinking - I could tackle the huge pile of washing up in the kitchen (with gloves, naturally) and ease the incessant cold.
Two problems solved.
Now, why didn't our heroes think of that?