Today was auto maintenance day: tire rotation (free as I bought the tires there) and an oil change. Clerk tried to charge me full price, I had to remind him that I am a return, frequent customer, so my bill should be $5 off. : )
I paid $26.49 out the door. This is about what it was costing me when now X would buy the oil, filter and do it himself, so I figure that this is a fair price.