Thankfully, as I am travelling domestically I don't need to carry anything other than my usual money.
I will see if there is an app like that for Android.
I think I will probably be adding some small first-aid/medication type of things.
Socks are small enough to pack, and nothing helps with wearing shoes comfortably than a clean pair of socks.
And I don't wear hats.
Thanks for the suggestions.
You are welcome. Enjoy your trip!