Apart from heating & more layers of clothing - what can you do to get warm...?

[XTIAN170174]

e.g.
https://docs.google.com/leaf?id=0B7DQHJSQu6jOYzJjN2ViMDktZDU1ZC00MGJhLThkZjQtZGUwMTA5ODY3OGYz&hl=en&authkey=CKnxldgG