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

Q: On a flight with Air Transat, passengers were informed that for use in the in-flight entertainment system, only earbud style earphones were permitted.

I ignored this and used my on-ear style earphones (I hate earbud style earphones), and the cabin crew did not tell me to take them off. I could still clearly hear announcements, and in any case, those announcements could be transmitted through the audio of the in-flight entertainment system, so being unable to hear important ambient sounds does not seem a reasonable motivation.

Why would only earbud style earphones be permitted? Is this rule common and commonly enforced?

A: Why only earbud style earphones?
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Q: When taking shared ride vans in the United States are you expected to tip? If so, how much?

To be clear I'm talking about services where you are lumped along with 5-6 strangers in a van that then takes each passenger to their destination from the airport (or vica versa).

It's not quite a taxi (where I would tip) and it's not quite a bus (where I wouldn't tip), but occupies some sort of middle ground between the two.

A: Tipping in shared ride vans
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Q: Can you give me all available options? I am a 20-year-old student. My friend and I want to travel to Italy. The embassy wants to make sure that I will come back to my country, so they want a proof like a house and a high salary. I run a website on the internet with 1,000$ a month earnings. Will they accept that? Or do I have to be an employee?

A:
Schengen visa for a student
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