I am in NE Ohio, and we get all the good stuff over the winter time, salt, snow, cold, wind, grey, etc.
I usually put up the car in late November, and then get it out again in the spring. I would not advise just starting the car every couple of weeks or so. The major issue is the water that can accumulate in the oil. Plus the acid components from combustion. It takes a reasonable amount of time for the oil to come up to temperature, versus what the water gauge reads. If you really feel the urge to drive, wait for the clear, clean days as the thread has recommended. If not, the short runs will not be a good thing for the engine. You need to get the oil to temperature to drive off the water, and let the neutralizers in the oil do their work on the combustion byproducts. Also if you run it in place, you are using up the gas, and letting more water vapor in there. So if you do run it on the road, be sure to keep the tank topped off.
There are a number of threads on storage, battery, tire pressure etc. For us Northerners that is what we are stuck with.