We just sold our house, and my family and I (including small children) are now staying in our Puma by Palomino 30' RV parked at my parents' house in the country until we find our next home. We aren't using the toilet or any water in the RV; we're using my parents' house for such. We're in Iowa and it's February. This week it's below freezing with high winds. (Obviously not ideal but it is what it is.) What tips and tricks do you have for RV living in a Midwest winter to keep warm and such?