Do you keep a list when you travel for what to pack & do? I have a running list for when we either go on vacation for a week (which we don't do anymore, getting too old for that lol) or just spending the nights with my parents. I have it in Microsoft Word. What I do is a couple weeks ahead of time, I start packing. I don't like waiting until the last minute. When I pack it, I highlight it in Word. Then when I'm all done, I just un-highlight. 
I have a separate section that is seasonal. i.e. I don't need to bring hats & gloves when it's summer lol 
The list also consists of my To-Do's around the house so I can keep it organized.