Wear as little as possible going out to stand. Take your time and go in slowly so as not to build up a sweat.
Keep adding the layers as you begin to cool down. Keep your head and neck area very warm. This will keep the rest of your body warm.
Do not wear cotton at all
All fantastic advice, especially the bolded sentences. It took me over 10-12 years to finally figure those excellent points out....I know, I am a slow learner.