I just finished reading a Jayco article on insulating your camper if you plan on living in it during winter. I have spent some 10 to 20° nights in our camper and it got pretty doggone cold. Of course, I had no special preparations done on it because these were one night ventures. But I am wondering for those who may have used some or all of the recommended insulating and heat retaining tricks that I saw mentioned how effective they found them. The article discussed winterizing windows, doors, vents, rugs on the floor, heating tape on piping, heating blankets on tanks and skirting. I may have forgotten one or two. But since these puppies have thin walls, whether insulated or not, and the roofs being what they are, I just wonder the extent of the effectiveness of making those preparations.