Do you ladies know how good newspaper (multi-layers) is for keeping dishes hot? Our church begins at 9:00 a.m., and our "dinners" at 12:00 noon. Those who live too far away to make two trips have learned that if we wrap the dishes in several layers of newspaper and then place them in the carry-all, they will still be at serving temp (oven hot!) for the potluck.
Newspaper works well for insulating cold items, too. If you are transporting those in a cooler chest, cover them with several layers of newspaper. I transported seafood from Louisiana to Colorado like this--a 2-day trip. The seafood was still frozen solid when we arrived--and in June, not winter.