If you're as creeped-out as I am about all the reports of bed bugs, you might be interested in a product I saw via a press release.
I haven't tried it yet, but here's the description from the web site:
Bed Bug Protection in a Convenient Travel Size Made From Natural Ingredients
Take Nature-Cide’s Travel Bed Bug Spray with you when you travel.
Carry-on acceptable. 100% Natural. Stain Free. Pleasant odor. Protect
yourself by using at the office, airplane, movie theater, taxi cab,
luggage, and hotel room
The company's press release was actually about garden sprays, but frankly, here in Silicon Valley there are so many places to get really good, natural products for the garden I don't much worry about it.
But bed bugs and the whole what-to-do-when-you-travel thing is much more difficult. Anyway, if you try it, let me know how you liked it, if you had any trouble at the airport with it, or any unpleasant odors. Or, even worse, if you used it and still brought bed bugs home from a trip.
UPDATE: The company sent me samples of the product to try - fortunately, I don't have bed bugs but I was able to spray it in my house and bed to see how the fumes affected me. It was a little unpleasant for a couple of minutes but by-and-large, something I'd happily take with me when traveling.