Driving

I recently had a discussion with my husband, in which he noted (after I had backed his car into our neighbor's car) that my problem (with driving) is that I pay attention to other things besides driving. Well yes, I do. Doesn't everyone? Are you really supposed to think about NOTHING when you're driving (except driving)? Seriously? (this is not a rhetorical question - I would appreciate feedback from anyone and everyone. We may be on the verge of a breakthrough.)