I used to, years ago. I enjoy doing a lot of other work on the car, but changing the oil is just a pita. (Disposing of the used oil, etc.)
Hey, wait a second... can I just filter and pour the used oil into my oil tank (home heating oil)??
Anyway, I love when I see specials at places like Monroe Muffler... "$9.99 oil change special". I watch them like a hawk to make sure I get the new filter, etc. The last time I went there, I had an estimate for a little over $1000 for services and repairs that I should have done. I believe my exact words were "you've gotta be kidding me! The only thing that 'needs' to be done is that I need new front brakes... I'm practically metal on metal! How the heck did you overlook that?!" Guy who's showing me the problems on the vehicle: "Ohhhh, you're right sir. I'll be happy to add that into the estimate for you." "Why would you bother?? Didn't you notice the box of pads on the passenger seat?"
Things that they claimed needed to be done: "You need a new fuel filter because you still have the original. It's above the fuel tank, so we have to drop the tank off to change it. That's $200. Then, we have an exclusive, we're the only ones who offer the service, fuel intake cleaning system. Your car won't run properly without it." Me: "So, you're claiming that every car in America needs to go to you guys to run properly since you're the only place that does it??" The service: We squirt some fuel injector cleaner while your car is running. Then, we take some big q-tips and clean some of the carbon built up in a few of the hoses. $119
I laughed at the guy, mentioned how they were trying to rip me off and questioned, "what would happen if a television news channel exposed your practices for what they actually are?" He STILL made me sign a piece of paper stating "I've just gotta cover my butt in case you're in an accident because you declined to have these needed repairs done to your vehicle." I happily paid my $10.84 or whatever it was after tax and left; the whole process took about 25 minutes, I didn't get my hands clean, and I saved some woman customer from getting ripped off (we were chatting while they worked on our vehicles. - She just moved to the state and needed the state inspection. I gave her a list of the things they were notorious for finding wrong; the look she gave me when they actually did give her the exact same list of problems was priceless.)