> I keep threatening to do a trip without it and see just how many things we forget, don't do and screw up. MAybe one day... :)

I don't have a checklist, and usually I'm fine. So, it's certainly possible :)

Also, I think if you have a list of over 100 items, maybe it's time to simplify it or break it up into sublists. That length itself probably produces more anxiety than saved by the list. It sounds like an over optimization

For background, I create todolists and checklists all the time in my life. Just so far, I haven't felt the need to make one for taking vacations.