My husband: usually 99% packed, 4-7 days prior to trip, complete with spare outfit(s) choice first aid items, ponchos, change for tips, travel toiletries, snack, etc. All he needs is charging cords and boarding passes and he's out the door.
Me, day before departure: Suitcase propped open where Husband left it 4-7 days prior. One pair of pants tossed inside along with whatever stray items were left behind last trip and a half bag if cough drops. I'm usually wearing clothing that I still need to wash and pack and the rest is either in a hamper or a closet.
Disney Eve spent with me packing and DH double checking his packing. Again.
I love it though. If Monty Hall was on the plane and said he wanted to make a deal and would offer $20/item for a paper clip, some tape, a safety pin, folding scissors, a penny, a rolaid or a bandaid, a sham-wow, etc. we could finance the entire trip.