rvit:
We also head south for a few weeks each winter. Once winterized, we do not de-winterize until the Spring. We will use the RV toilet when necessary, but not often. I will dump the black tank before heading back to cold temps. and put RV antifreeze down it. We tape over the sinks to remind us not to put anything down them. We carry gallon jugs of water to use when necessary for cooking, coffee, etc. We do not fill the fresh water tank and we do not hook up to water. We use Purell to wash our hands and campground facilities for showers and other necessary cleaning. So, except for use of the toilet (not often), we remain essentially still winterized.
Bob