Thrill to the attractive hotel ads for bargain rooms, where destinations like Las Vegas advertise at $30 a night. You book and stay several nights, and then at check-out time, your total bill is for $70 a night. In Sin City, they call it resort fees, but it’s add-on robbery.

Be aware, too often even in hectic holiday seasons, when airlines and hotels advertise many attractive bargain prices. Then, when you get the total bill, you actually pay another 25 to 50% for unadvertised extra fees and services.