Believe it or not nothing!! I have a vacation list which i always use (sometimes have to add a thing or two to it each year). I start packing over a month ahead of time and start crossing things off my list. It is that much less i have to do. each day i can add another thing or two, etc...I have a corner which i put all my vacation things and just keep adding. For the items that i will need last minute i add them to a seperate sheet of paper and put on the dining room table for the morning that we leave so nothing is forgotten. As a matter of fact today i started adding items to my medicine chest & toiletry bag and got a good amount of stuff crossed off that list (i have 4 weeks 5 days to go before we leave but i feel good at least i started).