When I had my YJ I would pull the doors and top off in the spring and not see them untill it started to snow. I also had a 30 mile drive to work. I would bring my rain coat with me and when I got to work I would put them over the seat, when I got off at midnight I would simply take them off the seat and put them on and head home. Trash bags will rot your seat. They need to be able to breath. If it is a temp thing it would be okay but dont put a trash bag over them and then put a set of seatcovers over the bags.