As our enchanting trip from Honolulu to Bangkok on Asiana, to Dubai via Air Emirates, then to Singapore on the Regent Seven Seas Explorer, is exactly three weeks away, I continue to have travel on my mind.   About credit cards, there is a rumor that more and more countries are not accepting your Master Card.  Not true! One advice I can provide to those who are embarking on an international trip: you might wonder if you need to alert your credit card companies.  The answer is....it depends: For the past decade and more, there was a general sense that you did not have to do this. However, when I checked with my Master Card through First Hawaiian Bank, the bank indicated yes, it was important to let them know exactly where I would be and when. After taking care of that, I called the number on one of my VISA cards, this one from the University of Hawaii Credit Union, and, first, I had to make at least five calls to finally get to an individual who told me, yes, I needed to do this...but no