The most useful gifts for frequent fliers and travel obsessives

Whether or not you are a travel obsessive, you know what one sounds like.

This is someone who'll eagerly tell you which mileage-reward program to choose, when renovations will be done at LAX, where to sleep in San Diego, what pillow is best for a 14-hour flight, and how resort fees are the devil's own invention.

Of course these friends would be delighted by gifts that play to these interests, but if you don't speak the language, buying can be tricky. Whether you're a nomad or not, here's some help.

Trtl travel pillow

Unlike U-shaped pillows, this one looks like a scarf or bandanna and relies on internal support (an adjustable plastic brace and Velcro strip) to keep your head supported while you nap. You will need to decide between leaning right or left. It's thinner and lighter (5.2 ounces) than most travel pillows, and, simply put, it doesn't look so dorky. Once aboard, "loop, wrap