I just finished reading How To Live Well Without Owning A Car by Chris Balish. Right now, I'm on day two of a week long trial of being car free. So far so good. Everything I need is within a four mile radius of home. My only real concern is the upcoming winter. I have a one mile trip to work. At what point would I be in danger from being out in the elements? It can reach a high of zero with below zero double digit wind chills at night for the ride/walk home. Thoughts?