Dear Globetrotter:

Welcome to the 443rd issue of your monthly foreign-travel magazine.

I’m about to take you on a long journey that touches on a few financial matters. While this article may be extensive, I suggest that you do not overlook the last few paragraphs or Uncle Sam may come calling.

If you fly often, it’s likely you’re a member of an airline’s frequent-flyer program. Each time you take a flight with the airline, you’re credited with “frequent-flyer miles,”...

Dear Globetrotter:

Welcome to the 442nd issue of your monthly foreign-travel magazine, the one that prints the reports you send in.

In the July issue, I wrote on the rules about having spare batteries, particularly lithium batteries, in checked luggage and carry-ons on planes. I then made this request of ITN subscribers: “After you next board a flight within or from India, or if you recently did so, tell us what regulations you were made aware of in regard to packing spare...