Bikewolf

In motion staying warm is easy. But, in winter, what to do when your activity levels drop? E.g. early morning chill, coldness at your destination (work)

Obviously one can drink something warm and put on a scarf etc. Or quit da job and get back to sleep ;-)
But I was wondering how you guys deal with that.

I would like to preserve body heat while being ‘motionless’. How can I approach this practically? Maybe I need to shield my midlayer with a non-breathable jacket? Down, something technical ... ? How to layer / adjust layering for these inactive moments? Any tips on how not to cool of too rapidly? Thanks!