I do almost none of that.
For my S2000, I top off the tank, hook up a tender, and leave it be.
For my Mini, I top off the tank, park it outside, remove the battery, throw a car cover on it, and leave it be.
For my bike, I top off the tank, hook up a tender, and leave it be.
I don't do an oil change until the spring. Synthetic oils last 12 months anyways before shearing down, so I'm not worried about it.