long term storage

Hi everyone, I was curious if anyone in the SE Michigan area had any good tips on some winter storage areas. I usually throw a heater in the garage but I want to clear some space out to work on a project. I looked at generic temperate controlled storage but its like $169 a month, there HAS to...

Every year I put my C7 garage storage for quite a few months. I want to avoid getting tire flat spots. I don't think it is as much of a problem with run flats because of the sidewalls they have. I have found a product online that says it prevents tire flat spots. They cost about $275 for a set...