it takes multiple people hours because you don’t just take everything and put it in the car - you have to throw out the 20 + empty amazon boxes with bubble wrap from the stuff you sent all year, clean out the fridge (and all the expired rotten food), sort through the dirty laundry, undo the bed linens, take the stuff off the walls (and windows), throw out the half empty toiletries, gently pack and wrap the delicate souvenirs accumulated from events throughout the year, run to a friend’s room to return whatever it was that was borrowed and is in your child’s room hidden so she didn’t realize she still had it, stop and say goodbye to the kid two doors away who is leaving, go buy yet another bottle of cold water from the store next door because you are hot and sweaty, etc.