Did you ever go on a trip and forget something? Medications? Sleeping pills? Socks? Lots of people do this, myself included. What I’ve found helpful is making list in the days and weeks before my trip. I add everything I need as a part of my daily routine, and then add additional items as I think of them. Then when I’m packing I cross each item off the list as I pack it. It works every time, I haven’t forgotten anything in some time.