I used to change my own oil but haven't done it in many years and a few cars.
The cost of the oil plus filter is not much less than paying for an oil change.
The filter is often hard to get to.
And disposing of the oil is a pain.
Rotating your own tires with one jack is something I've never done.
I'll drop the car off at a service station if something else needs tending and have the oil change done then.
Did Jiffy Lube once.
I felt harassed to have them do more service and never went back.
I have changed plugs and replaced my battery and lights before.
I don't do any of my own work anymore.