18 brilliant ways to save money on travel from people who do it all the time

Photo courtesy of Gloria Atanmo We all want to figure out how to take our dream vacations without spending a fortune. INSIDER spoke to seven people who travelconstantly — and often make a living from it — to learn their best money-saving travel hacks. To travel as cheaply as possible, you need to be flexible, not afraid of negotiating prices, and aware of the little-known websites and hacks that can save you major cash. Here are 18 tips for traveling on the cheap — from people who do it al...