AC

Frequent business traveler Joe Harvey says passing through airport security can be a breeze -- if you have the right accessories. His backpack allows his laptop to be screened at checkpoints without his having to take it out. "I simply unfold it," says Harvey, a software consultant who lives in Lafayette, La. "My backpack holds everything I need to travel with. Nobody ever has to wait for me to disrobe ... or empty my pockets. Ever." If you're looking for a nice gift for the business traveler in your life, you've got plenty to choose from. A cottage industry has sprung up for products that help frazzled fliers deal with the myriad rules and fees that come with air travel. There are checkpoint-friendly laptop cases and ultra-light carry-on bags that help avoid checked luggage fees. There are digital scales to make sure you don't get penalized for overweight luggage, and even solid shampoo bars that get you around restrictions on liquids. "These new categories have literally...