I saw in some other threads that people have a printed & laminated checklist that they keep in their bags. Sounds like a great way to go, except I think I tweak my checklist too frequently to laminate it For each trip, I'll start with the same basic list & then make minor tweaks to it (like making sure I have event tickets, or remembering to bring my Costco card). I've tried tracking these both in Excel & Onenote. For each trip, I'll typically print out a new list. I find a little extra satisfaction/reassurance from actually checking off an item on the list. The OCD part of me requires that there be two columns for checking off...one when I pack the item, and another one later when I verify that I've packed the item So that's my little packing quirk. What do you use to help you remember what to bring on a trip?