This is great stuff and reminds me of the first non-parent trip I took at 18 some 51 years ago. Your spreadsheet is amazing.
For two years after I got my driver's license in 1964, I slept with it under my pillow at night and kept checking my rear pocket during the day to make sure it was still there. Ditto for my passport when I got it in 1970.
I look forward to the rest of the report and to many more from you.