This may be the best tip I ever pass along. If you are looking for that deeply buried, but well worth the dig kind of deal on air travel...well here it is. Check out www.airfarewatchdog.com. Sign up for the newsletter. Cruise around the site. Real deals uncovered. And top dog George Hobica has done all the deep digging for you! As he puts it, "when airfares are low, he'll let you know."