Yes, I should have specified that I was speaking in the context of someone who is working at client's offices on a regular basis (in which you would have enough mileage to make a difference when it comes to deducting the expense). If you primarily work at home and you occasionally visit clients for meetings and updates or sales calls, then you should be fine deducting the mileage.

But if you are the type of freelancer that goes and works on site on a regular basis for your clients, then the IRS will likely try to assert that your client offices are actually your "place of work" and driving in to see them is merely a non-deductible commute.