Kulots: just a thought. I'm like you; when I hike, I'm looking for the elevation and the great scenery. Maybe the local areas may work when you're pressed for time??
I spoke about carpooling. Is this taking car pooling to the extreme?
Seriously, is carpooling a help? I don't have HOV lanes in my area. It will not help me there. Also, my work schedule may vary. If there is an emergency in the facility (and it happens alot), I wouldn't have a ride home or my co-worker may twiddle his/her thumbs for awhile.