We go camping at least once a month. We travel for several months each year. There are 2 sets of clothes and bathroom supplies. One for the house and one for the RV. All tools and RV needs are always in the RV. When we leave we take food and drinks for 2 days, pet food, meds, lap tops, cell phone (Don't forget the charger) and camera. If the trip is more than 2 days and we travel, the first night is a Walmart stop to get more food. It takes us about 15 minutes to pack.
If a Hurricane is approching or some other emergancy comes up, We're ready to leave in a hurry. This also eliminates a lot of time packing and unpacking.