Currently I have a thermal vest, T-shirt, fleece and an oversized hooded fleece thing along with fingerless gloves.@Apple fanboy: You are (or were) right (and probably, not for the first time):
For the best part of the past week, it has been - I have donned - four layers, not three.
Indeed, five probably wouldn't go amiss.
Keeping me warm. Well that and the tea.