http://www.msnbc.msn.com/id/36699304/ns/travel-tips/

Many consumers will spend more than they expected for airline travel and hotel stays this summer. Sometimes because they were scammed, other times because they didn't read the fine print on a company Web site.
Some travel companies will try to lure customers by low-balling prices of hotels, cruises and other travel expenses.
"Most people are savvy enough to spot the obvious ones, so travel companies are getting better at things that inflate your price," says Gabe Saglie, a blogger for retailer Travelzoo.com. "They're becoming much more creative in their marketing."