So what do all of u do to winterize. So far oil change, check tires, lube doors to prevent squeeking and door latches to prevent freezing.

How long have you been in Ohio Paul? I actually haven't done anything but we haven't had any real snow yet, IMO 10W30 is fine for around here, I usually let mine warm up before I take it for a drive, lubing all the moving parts up can't hurt, and you remembered to wax it good right?

Use cooking spray on your door seals. Keeps em from freezing to your door jams.
Change out wipers
Top off wiper fluid tank.
Emergency stranded/break down kit.

Silicone the door seals, put on the winter tires, put on my winter hood, change to my winter tune.