I'm going to try and out-do Arch ... so my layers are ... vest, bamboo base layer, long sleeved Tee, merino top, thin fleece and thick fleece. And when I went out earlier I also put on my coat and 2 pairs of gloves ... , and on my bottom half I have bamboo base layer, and jeans, and 2 pairs of sock and the required undies under it all. Each evening when I'm going to bed I feel like a Russian doll being opened!
Yesterday I was so cold when I was cycling home I managed to wear a down gillet as well whilst cycling up hill.
Did I mention I feel the cold... luckily with all these layers I feel fine at the moment.