I'm an early packer as well - I think partly because I pack not only my own personal stuff, but all the family stuff - sunscreen, ponchos, food, etc. All that stuff I'll start pulling together a week or two before the trip. I've already started buying a few things at the grocery store for our beach trip in July, so that's in a couple of reusable grocery bags. My own clothing and personal items I'll do the day before we leave. If we're leaving early in the morning, we like to pack the car the night before so we don't start the trip fighting about it!