I walk sometimes, it's about 1.5 miles. Or bike the "long" way, 1.7 miles, to use the route with the bike path. There're trucks blasting by on one of the roads I walk, but there's a sidewalk too, so it's not too bad, and there's a great park to walk through close to work.
A couple times while I was walking home, a coworker slowed down beside me and asked if I needed a ride, or "Did your car break down?", or "Why are you walking?" These are people who know I live close to work, unbelievable!