We are spending the summer in WI and hauling everything I needed was impossible. One of the thing I left behind was the cooler for keeping my bags warm. I just put a large towel in one of the solution boxes added my heating pad, put in the bags, covered with another towel. I then used an extra bag to weight down the flaps of the box. Since the boxes are heavy-duty cardboard it works like a charm. Give it a try even if you are staying home.