You and me both. I'd start wondering did I remember to pack this or that. Even though I use a list, I always feel like I forgot something. Usually something I don't really need, like a different color of shoes, but still, I would drive myself nuts. And my DH doesn't pack his stuff until the night before. I used to pack for both of us, but just when I would be ready to zip up the bags, he would come up with a pair of size 11 shoes and some electronic gizmo and....so now he has to pack his own.