We are traveling to Rocky Mountain National Park for six nights the second week of July and camping in our PUP at the Estes Park Campground. My question is: what is the best way to store your food? We have a Crew Cab pick-up, not an SUV, so this is a little more difficult. Any suggestions? Also, what do you do during the day when you are out-and-about? What do you keep in the PUP fridge?