Good Morning, for good or bad I don't always remember how old i am. (fyi 68) so i do what i want until i get tired. We moved into my "forever home" when i was 41, two story plus basement; bedrooms and bath second floor, living room, kitchen, and tanks on the ground floor, laundry, sump, and mixing station in basement. twenty seven years later i hear you saying that in twenty years i will probably have to move to a home on one level. mean while i am rehabbing a two story and basement that my 80+ grand parents were living in for 50 years. at least, there, a bedroom and bath are on the ground floor. i wonder, If your winter home is in the same state do you qualify as a snow bird? especially when you go north for the winter? be cool!