Dear Globetrotter:

Welcome to the 441st issue of your foreign-travel magazine, the one you can help write.

A heads up — airlines are introducing baggage-policy changes that you need to be aware of.

According to new rules announced in January by the US Department of Transportation, as of June 2012, airlines in the US must disclose all fees at the time of ticket purchase, whether the purchase is done in person or online. Also, when a single-ticket itinerary involves...