All in the name of charity. You can't claim your commute to and from work, but you can claim mileage (under a particular schedule) for your driving to and from charity work. And if your charity work happens to be near your job, as it might very well be, well, that would be convenient. Driven to volunteer? The mileage that you cover going to (as well as parking and tolls) in going to and from any volunteer work can be deducted—but not, of course, the time that you spend. And no, running your collectible in an occasional charity rally or selling it in a charity auction won't count for any special tax deduction.