Tip: Before even thinking about placing a deposit, check out your online booking site's rental security info, and go with an outlet you've researched.
10. Bogus travel clubs
A New Jersey man who owned and operated a fraudulent travel club pleaded guilty to second-degree theft last summer for, according to the Better Business Bureau, "pitching phony vacation travel membership packages" that offered -- but never delivered -- big deals on airfares, hotels, and cruises if you belonged to the club.
Tip: Too-good-to-be-trues are exactly that. And trust your booking with an agent or the internet -- not some guy from Jersey.
Dave Baldwin is Thrillist's senior travel editor and was once mugged at knifepoint in Madrid. He lost $11 and the switchblade he bought in Portugal. The irony. Follow his exploits at @ThrillistTravel.