Given a travel related situation, and given a specific question about the situation, summarize the question into a title
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Question: There are many times when I'd like to jot a short note in my passport. For example, the business purpose of an entry into a country -- or for countries with automatic passport control and when I don't get a stamp, I'd like to notate my entry and departure.

Can one write in one's own passport? I wouldn't of course write over any stamps, but I might write near them. Or could I use a back page as entry and departure dates?

Yes, I could use a separate piece of paper or a computer file, but having them all in my passport would be handy -- especially when a border officer asks where I've been and why.

And if the laws vary by country, can you note this in your answer? Would it matter if my notations were in ink or pencil? These aren't doodles but business-like annotations and lists.

Answer: Can I write notes in my passport?

Question: I went to the Italian consulate in Washington, DC today and they would not accept my visa application because they said my US visa stamp cannot expire less than 3 months after the end of my trip to Italy. Here's my relevant visa and trip info:

US visa stamp expires on 16 Dec 2015
I-797 valid until 3 Mar 2017
Trip to Italy is from 15 Oct to 25 Oct 2015

Is it true that my visa stamp needs to be valid for 3 months after my trip, even though I can legally stay in the US until 2017? Does anyone have any suggestions for getting a Schengen visa in my situation?

Answer: Schengen visa application rejected because my US visa stamp expires in December. What are my options?

Question: Travelling to Las Vegas with my two kids (1.5 years and 5 years old) in September. Can we see people roaming around in Vegas roads during night times with their kids? In almost all the pictures and videos I could only see adults roaming with drinking and laughing. All adult activities. I really want to show my wife casinos in Vegas before going back to my country.

Answer:
Where can I leave my kids to visit Las Vegas casinos?