Well, I suppose this is the advantage I have for not working for vendor management companies, and only working for attorneys.  I split my mileage of course between work done for clients on that day, if I only go to one county.  If I travel to more than one county, I charge that client for the miles traveled to complet the job.  What is sooooo difficult about multiplying 60 cents by the miles traveled.  And yes, I charge the milege for returning to the office.  Get a grip!!!