And a filter wrench, and a way to dispose of the oil and filter, and a place you're allowed to work on your vehicle (many apartments disallow it) and I don't think it's fair handwave the jack and jackstands and possibly wheel chocks that most cars need to safely and comfortably get to the drain plug, plus gloves and safety glasses. I have all those things so I do my own oil changes but I'm not pretending it isn't a hassle and it's barely a cost savings. I think people should learn basic car maintenance because it's outrageous to be completely ignorant of something so important and expensive in your life, not because paying for someone else's time and experience is a bad thing.