Cold climate owners: what do you do with your RV in winter?

Clean it inside and out winterise it put it in our pole barn next to our daughter and son in laws class C. Ours has never set out in winter. Rented space in an old apple orchard barn before we built our own barn in 2004. The kids C has also been stored inside always. We live on the east side of Lake Michigan on the Indiana Michigan border. The snow and wind can be brutal here. It’s in the barn whenever we are not camping.