Dr. Wagenaar’s article on carry-on luggage (May ’07, pg. 87) was extremely informative and useful. I would only add the following helpful household hints.

I like shirts with two secured pockets, preferably with Velcro, with an additional deep pocket underneath the usual one. This allows me to keep my printed-out boarding pass/ticket and passport in a secured area without the nuisance of fishing around in a money belt.

If you have trousers with an additional inside zippered...

All luggage seems to be on wheels today. It’s great on flat surfaces, but now we have all these new weight restrictions, and wheelers weigh seven pounds or more. Is it important to you to have wheels or to be able to carry seven more pounds of your stuff? It’s your choice.

Wheels can be an absolute liability on the steep escalators in the London underground. In downtown Oslo, on the way to the hotel from the railroad station they’re an absolute nuisance as the bag tips over every few...

A reader talked about buying a bottle of Amarula liqueur at an African duty-free shop and putting it in her carry-on bag for the return home (June ’07, pg. 50).

We returned from Africa May 22, 2007, and at the Johannesburg duty-free shop where we tried (the operative word) to purchase Amarula to take to the U.S., we were told that the airlines would not allow such a bottle of liquid on board. No more than three ounces of a fluid substance is the rule and has been for a while. Some...