Given a travel related situation, and given a specific question about the situation, summarize the question into a title

I think it's better if I tell a short example:

I plan on going from country A to country B, and I find out that it is cheaper if I pass by country X.
However, the flights from A to X and then from X to B have to be booked separately with unrelated airlines 1 and 2.

Is it usually possible to ask airline 1 to automatically transfer my luggage on arrival to city X, to the plane managed by airline 2?

Or do I have to grab my luggage myself and go through customs and airport-security?

Luggage transfer between unrelated airlines

Is it acceptable to show up unannounced to a car rental shop and rent a car for ~5 days? Is it better to reserve in advance via a website?

I speak decent japanese and should be able to explain the situation and understand details.

General answers are prefered so the question can be of use to more people, but my particular situation is such:


Short delay (next day)
Greater Tokyo area


In Japan, should rental cars be reserved in advance?

I will be travelling to Hong Kong in a few months' time. I hold dual nationality and neither of my nationalities requires a visa to enter Hong Kong. During my trip, I will travel to Korea for a few days, before returning to Hong Kong to fly home.

Will I require a visa as I will have multiple entries within 3 months of first arriving in Hong Kong, or does visa-free entry allow me to come and go (as a tourist), effectively, as I please?

I'm guessing that using my two passports would be something they would spot instantly and lead to further questions?


Hong Kong: Visa for Multiple Entries?

